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%!
% This is the prolog used by OzTeX 1.42 to convert a DVI file into PostScript.

% Set dev to "LW" if LaserWriter, "LINO" if Linotronic, or "?" if unknown:

/dev (?) def
statusdict /product known {
	statusdict /product get
	(LaserWriter) anchorsearch { pop pop /dev (LW) def } { pop } ifelse
	statusdict /product get
	(Linotype) anchorsearch { pop pop /dev (LINO) def } { pop } ifelse
} if

% OzTeX calls @setup with the following parameters:
% resolution (integer), landscape (boolean), horizontal and vertical offsets
% (integers that are used to position the TeX origin correctly).

/@setup {					% set up OzTeX's coordinate system

/voff exch def
/hoff exch def
/land exch def
/res  exch def

/oshift -10.7 def			% shift for TeX origin;
								% assumes A4 paper height (-11.7in + 1in);
								% you may want to change to -10.0 for US Letter paper

dev (?) eq										% unknown device?
{ land
	{												% landscape
		90 rotate								% rotate axes 90deg anticlockwise
		72 res div dup neg scale			% units now device dots
		res dup translate						% move to TeX origin
		voff neg hoff translate				% adjust TeX origin if necessary
	}
	{												% portrait
		72 res div dup neg scale			% units now device dots
		res oshift res mul translate		% move to TeX origin
		hoff voff translate					% adjust TeX origin if necessary
	} ifelse
} if

dev (LW) eq										% LaserWriter?
{
	% Display model and version in OzTeX window:
	% (\rmodel = ) print statusdict /product get print
	% (\rversion = ) print version print (\r) print flush

   land
	{												% landscape
		90 rotate								% rotate axes 90deg anticlockwise
		72 res div dup neg scale			% units now device dots
		res dup translate						% move to TeX origin
		voff neg hoff translate				% adjust TeX origin if necessary
		
		% Model-specific adjustments to origin can be made here:
		statusdict /product get (LaserWriter) eq
		{ -90 0 translate												% move left a bit
		}
		{ statusdict /product get (LaserWriter Plus) eq
		{ -32 0 translate												% move left a bit
		}
		{ statusdict /product get (LaserWriter II NTX) eq
		{ -20 0 translate												% move left a bit
		}
		{ statusdict /product get (LaserWriter IIg) eq
		{ 0 0 translate
		}
		{ % some other model
		  0 0 translate
		}
		ifelse } ifelse } ifelse } ifelse
	}
	{												% portrait
		72 res div dup neg scale			% units now device dots
		res oshift res mul translate		% move to TeX origin
		hoff voff translate					% adjust TeX origin if necessary
		
		% Model-specific adjustments to origin can be made here:
		statusdict /product get (LaserWriter) eq
		{ 0 22 translate												% move down a bit
		}
		{ statusdict /product get (LaserWriter Plus) eq
		{ 0 0 translate
		}
		{ statusdict /product get (LaserWriter II NTX) eq
		{ 0 14 translate												% move down a bit
		}
		{ statusdict /product get (LaserWriter IIg) eq
		{ 0 0 translate
		}
		{ % some other model
		  0 0 translate
		}
		ifelse } ifelse } ifelse } ifelse
	} ifelse
	
	% The matrix produced above can cause scaling problems,
	% so round each matrix value to nearest integer and use setmatrix:
	matrix currentmatrix
	dup dup 0 get round cvi 0 exch put
	dup dup 1 get round cvi 1 exch put
	dup dup 2 get round cvi 2 exch put
	dup dup 3 get round cvi 3 exch put
	dup dup 4 get round cvi 4 exch put
	dup dup 5 get round cvi 5 exch put
	setmatrix
	
	% Display new matrix in OzTeX window:
	% matrix currentmatrix
	% dup 0 get (            ) cvs print ( ) print
	% dup 1 get (            ) cvs print ( ) print
	% dup 2 get (            ) cvs print ( ) print
	% dup 3 get (            ) cvs print ( ) print
	% dup 4 get (            ) cvs print ( ) print
	% dup 5 get (            ) cvs print (\r) print flush
	% pop
} if

dev (LINO) eq									% Linotronic?
{ land
  {												% landscape
	 90 rotate									% rotate axes 90deg anticlockwise
	 72 res div dup neg scale				% units now device dots
	 res dup translate						% move to TeX origin
	 voff neg hoff translate				% adjust TeX origin if necessary
  }
  {												% portrait
	 newpath clippath pathbbox				% push LLx LLy URx URy (URy = ht in pts)
	 /paperht exch 72 div def				% paper height in inches
	 pop pop pop								% remove URx LLy LLx
	 72 res div dup neg scale				% units now device dots
	 res paperht res mul neg res add
								  translate		% move to TeX origin
	 hoff voff translate						% adjust TeX origin if necessary
  } ifelse
} if

% Some fine-tuning of the code used to draw a rule is necessary.
% Use page 18 in nasty.dvi to check results:

dev (LW) eq									% LaserWriter?
{ version cvr 38.0 le					% early model?
  { land
    {											% landscape
		  /r									% set a wd by ht rule at h,v
		  { newpath
			 moveto							% move to h,v
			 /ht exch 1 sub def			% reduce height by 1
			 /wd exch 1 sub def			% ditto for width
			 wd 0 rlineto
			 0 ht neg rlineto
			 wd neg 0 rlineto
			 fill
		  } bind def
	  }
	  {										% portrait
		  /r									% set a wd by ht rule at h,v
		  { newpath
			 1 add moveto					% move to h,v+1
			 /ht exch 1 sub def			% reduce height by 1
			 /wd exch 1 sub def			% ditto for width
			 wd 0 rlineto
			 0 ht neg rlineto
			 wd neg 0 rlineto
			 fill
		  } bind def
	  } ifelse
  } if
  version cvr 2000.0 gt					% IIg or newer model?
  {
	  /r										% set a wd by ht rule at h,v
	  { newpath
		 1 add moveto						% move to h,v+1
		 /ht exch def						% set height
		 /wd exch def						% set width
		 wd 0 rlineto
		 0 ht neg rlineto
		 wd neg 0 rlineto
		 fill
	  } bind def
  } if
} if

/mtrx 6 array def
mtrx currentmatrix pop					% save our new transformation matrix

} def											% end of @setup

% @saveVM and @restoreVM are only used if we are conserving VM
% by downloading font bitmaps more often:

/@saveVM {/prefontVM save def} def
/@restoreVM {prefontVM restore} def

/@newfont									% create new font dict
{ /maxchcode exch def
  /fontid exch def
  fontid 7 dict def
  fontid load begin
	  /FontType 3 def
	  /FontMatrix [1 0 0 -1 0 0] def	% -1 because y scale is negative
	  /FontBBox [0 0 1 1] def
	  /BitMaps maxchcode 1 add array def
	  /BuildChar {CharBuilder} def

	  /Encoding 256 array def
	  0 1 255 {Encoding exch /.notdef put} for

	  % The above 2 lines fix a definefont error that occurs on some printers
	  % (eg. the LaserWriter NTX-J).  If you have an old LaserWriter and
	  % now get VM errors then you might want to revert to the old code:
	  %
	  % /Encoding maxchcode 1 add array def
	  % 0 1 maxchcode {Encoding exch /.notdef put} for

	  end
  fontid fontid load definefont pop
} def

% The char data, a bitmap descriptor, is an array with 6 elements:

/ch-image	{ch-data 0 get} def		% the hex string image
/ch-width	{ch-data 1 get} def		% the number of pixels across
/ch-height	{ch-data 2 get} def		% the number of pixels tall
/ch-xoff		{ch-data 3 get} def		% number of pixels to left of origin
/ch-yoff		{ch-data 4 get} def		% number of pixels below origin
/ch-advw		{ch-data 5 get} def		% advance width

% The following character builder looks up the char data in the BitMaps array
% and paints the character:

/CharBuilder								% image one char
{ /ch-code exch def						% save the char code
  /font-dict exch def					% and the font dict
  /ch-data font-dict /BitMaps get
  ch-code get def
	  ch-advw 0
	  ch-xoff neg ch-height ch-yoff sub 1 sub neg	% -xo , -(ht-yo-1)
	  ch-width ch-xoff sub 1 sub ch-yoff				% (wd-xo-1) , yo
  setcachedevice
	  ch-width ch-height true
	  [1 0 0 -1 ch-xoff ch-yoff]		% bitmap sent top to bottom
	  {ch-image}
  imagemask
} def

/sf {setfont} def							% set current font

/dc											% define new character
{ /ch-code exch def
  /ch-data exch def

  % The following code should be enabled if you have an old LaserWriter.
  % It attempts to overcome a bug that causes the printer to crash
  % and print a test page rather then report a VMerror.
  %
  % vmstatus								% returns: savelevel vmused vmmax
  % 10000 sub gt							% is vmused > (vmmax-10000)?
  %	{ pop VMERROR }					% causes error message (avoiding crash)
  %	{ pop }								% pop savelevel
  % ifelse

  currentfont /BitMaps get ch-code ch-data put
  currentfont /Encoding get ch-code
  dup (   ) cvs cvn put					% generate unique name
} bind def

/@bop0 {pop} def							% begin DVI page n

/@bop1										% begin setting DVI page n
{ pop											% throw away page number
  initgraphics								% start with a clean slate
  mtrx setmatrix							% switch to our TeX coordinate system
  /prepageVM save def					% save state of VM at start of page
} def

/@eop											% end DVI page n
{ pop											% throw away page number
  prepageVM restore						% restore VM to state at start of page
  showpage
} def

/@end { } def								% end of file

% h and s are used to typeset downloaded bitmap fonts:

/h {exch 0 rmoveto show} bind def	% move right by dh and show (...)

/s {3 1 roll moveto show} bind def	% move to h,v and show (...)

% H and S are used to typeset resident PostScript fonts.
% We can't use relative horizontal positioning because the advance widths in
% a PostScript font are not integers and rounding errors would accumulate:

/H {exch v moveto show} bind def		% move to h,v and show (...)

/S												% ditto, and save v position
{ 3 1 roll
  1 add										% v+1 to match baseline of bitmap fonts
  dup /v exch def
  moveto show
} bind def

% r is used to typeset a rule:

/r												% set a wd by ht rule at h,v
{ newpath
  moveto										% move to h,v
  /ht exch 1 sub def						% reduce height by 1
  /wd exch 1 sub def						% ditto for width
  wd 0 rlineto
  0 ht neg rlineto
  wd neg 0 rlineto
  fill
} bind def

% Following procedures are invoked as the result of \special{file}.
% We change all scaling and graphics back to defaults, but shift the origin
% to the current position on the page:

/@bsp
{ /vmag exch def							% vertical scaling
  /hmag exch def							% horizontal scaling
  moveto										% move to h,v
  gsave
  /prespecialVM save def				% save showpage, TeX procedures etc.
  currentpoint transform
  initgraphics itransform translate
  hmag vmag scale
  land { 90 rotate } if					% rotate axes if landscape
  /showpage { } def						% user does not have to remove showpage
} bind def

/@esp
{ prespecialVM restore					% restore saved showpage value etc.
  grestore
} bind def

% Following procedures are invoked as the result of \special{epsf=file}.
% Note that @bepsf and @eepsf are currently identical to @bsp and @esp
% but it is a good idea to allow for future changes:

/@bepsf
{ /vmag exch def							% vertical scaling
  /hmag exch def							% horizontal scaling
  moveto										% move to h,v
  gsave
  /prespecialVM save def				% save showpage, TeX procedures etc.
  currentpoint transform
  initgraphics itransform translate
  hmag vmag scale
  land { 90 rotate } if					% rotate axes if landscape
  /showpage { } def						% user does not have to remove showpage
} bind def

/@eepsf
{ prespecialVM restore					% restore saved showpage value etc.
  grestore
} bind def

% Here is the code to handle bitmaps generated by PICT/PNTG \specials:

/@bitmap
{ /vmag exch def							% vertical scaling
  /hmag exch def							% horizontal scaling
  /vres exch def							% vertical resolution of bitmap
  /hres exch def							% horizontal resolution of bitmap
  /ht exch def								% height
  /wd exch def								% width
  /hexstring ht string def
  gsave
	 1 add translate						% set origin to h,v+1
	 res hres div wd mul hmag mul
	 res vres div ht mul vmag mul neg scale
	 wd ht true
	 [ wd 0 0 ht neg 0 ht ]
	 { currentfile hexstring readhexstring pop }
	 imagemask
  grestore
} def

% Here are the definitions needed to handle resident PostScript fonts:

/sp											% scaled pts to device dots
{ 16#10000 div								% scaled pts to pts
  res mul 72.27 div						% pts to device dots
} bind def

/PSfont										% uses dot size and TFM name
{ dup /Times-Slanted eq
  {pop /Times-Roman findfont [1 0 .268 -1 0 0] makefont exch scalefont setfont}
  {findfont [1 0 0 -1 0 0] makefont exch scalefont setfont}
  ifelse
} bind def

% count 0 gt
% { (\r *** Bug in DVItoPS.ps: stuff left on stack *** \r) print flush
% } if

% End of OzTeX's prolog.
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8 3 -3 2 9] 46 dc
cmr10.300 sf
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24 25 -1 24 22] 69 dc
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24 23 -1 22 22] 116 dc
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8 5 -8 4 22] 46 dc
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24 18 -1 17 22] 114 dc
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16 18 -3 17 22] 115 dc
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16 26 -3 25 22] 105 dc
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16 25 -4 24 22] 49 dc
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24 25 -1 24 22] 100 dc
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24 25 -1 24 22] 65 dc
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24 25 -2 24 22] 51 dc
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24 25 -1 24 22] 82 dc
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24 25 -2 24 22] 50 dc
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24 25 -2 24 22] 83 dc
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24 25 -1 24 22] 70 dc
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24 25 0 24 22] 104 dc
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24 25 -1 24 22] 102 dc
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24 25 -2 24 22] 79 dc
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4 @bop1
cmbx10.518 sf
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13(lac)h
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14(of)h
13(abstraction)h
14(results)h
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14(the)h
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-1(tages:)h
0 1885(*)s
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14(global)h
157(bu\013er)h
0 2109(for)s
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162(and)h
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965 2770(5)s
14 2 598 1225 r
5 @eop
6 @bop0
cmbx10.300 sf
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24 28 -3 27 29] 90 dc
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cmsl10.300 sf
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32 29 -1 28 31] 65 dc
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24 29 -1 28 22] 107 dc
cmbx10.432 sf
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40 42 -3 41 38] 104 dc
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40 41 -3 40 45] 69 dc
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40 27 -1 26 36] 120 dc
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32 39 -3 38 34] 53 dc
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32 41 -4 40 38] 83 dc
cmti10.300 sf
[<1E03270747074707870E870E0E0E0E0E1C1C1C1C1C1C1C1C38383838183818381C7007
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16 26 -4 17 20] 121 dc
[<3C1E0780266318C04683A0E04703C0E08E0380E08E0380E00E0380E00E0380E01C0701
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32 18 -4 17 34] 109 dc
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32 30 -6 28 32] 71 dc
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24 18 -4 17 22] 117 dc
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16 29 -5 28 19] 98 dc
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16 36 1 27 13] 106 dc
[<1E06270E470E4706870287020E020E021C041C041C041C0818083808181018200C4007
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16 18 -4 17 19] 118 dc
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24 37 1 28 23] 12 dc
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24 37 1 28 13] 102 dc
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24 18 -4 17 28] 119 dc
[<183878380808101020404080>
8 12 -3 3 13] 44 dc
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24 29 -3 28 19] 107 dc
[<00F3018F030F06070E0E0C0E1C0E1C0E381C381C381C381C383830383038187818F00F
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16 26 -3 17 19] 103 dc
[<3078F060>
8 4 -4 3 13] 46 dc
cmtt10.300 sf
[<7FFF00FFFF80FFFF80000000000000000000000000000000FFFF80FFFF807FFF00>
24 11 -2 17 22] 61 dc
[<01C00001C00001C00001C00001C00001C00001C00001C000FFFF80FFFF80FFFF8001C0
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24 19 -2 21 22] 43 dc
cmr10.300 sf
[<7FFC70386038407040F040E041C003C0038007000F040E041C043C0C380870087038FF
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16 18 -1 17 18] 122 dc
[<FFFFFFFFFF80>
48 1 0 11 42] 124 dc
6 @bop1
cmbx10.300 sf
866 552(Z)s
cmsy10.300 sf
907 552(\021)s
62 602(f)s
83 1100(g)s
cmr7.300 sf
0 1150(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
cmsl10.300 sf
0 552(Example)s
12(of)h
14(an)h
13(Ada)h
14(exception)h
15(handling)h
12(blo)h
1(c)h
-1(k)h
cmbx10.432 sf
0 42(1.4)s
24(What)h
23(is)h
22(an)h
24(Exception?)h
0 1947(1.5)s
24(Exceptions)h
22(as)h
23(Activ)h
-2(e)h
21(Statuses)h
cmti10.300 sf
1094 178(r)s
-2(aises)h
266 1548(dynamic)s
-2(al)h
2(ly)h
0 2208(Gr)s
-2(adual)h
2(ly)h
21(these)h
20(obje)h
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22(achieve)h
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21(by)h
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21(plethor)h
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0 2258(fe)s
-2(atur)h
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16(them,)h
17(like)h
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0 2308(even)s
15(danger)h
-2(ous.)h
1475 2433(actively)s
934 2482(p)s
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cmtt10.300 sf
719 129(goto)s
904 178(goto)s
849(raise)h
196 228(raise)s
20(sloth)h
15(exception;)h
524 278(sloth)s
15(exception)h
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22(:)h
22(integer)h
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21(2*x+y;)h
83 751(begin)s
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148 851(walrus_action\(n)s
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83 901(exception)s
148 951(when)s
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85(=>)h
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86(exception)h
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21(aardvark_excep)h
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19(=>)h
22(PUT\("The)h
20(aardvark)h
20(exception)h
20(went)h
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731 1225(declare)s
89(exception)h
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87(end)h
0 1324(sloth)s
15(exception)h
97(aardvark)h
14(exception)h
0 1374(sloth)s
15(action)h
63(walrus)h
15(action)h
842 1698(raise)s
cmr10.300 sf
0 129(An)s
16(exception)h
16(is)h
16(essen)h
-1(tially)h
16(a)h
15(non-lo)h
1(cal)h
118(to)h
15(the)h
17(nearest)h
17(dynamicall)h
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14(enclosing)h
15(target)h
17(lab)h
1(el)h
15(in)h
15(the)h
17(stac)h
-1(k)h
0 178(of)s
14(susp)h
1(ended)h
17(functions.)h
21(T)h
-3(o)h
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14(exception)h
104(,)h
13(one)h
132(the)h
16(exception,)h
15(for)h
15(example)h
13(with)h
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0 228(statemen)s
-1(t)h
492(.)h
24(Con)h
-1(trol)h
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18(nearest)h
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14(handler)h
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1(el\))h
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337(.)h
0 353(In)s
14(fact)h
13(handlers)h
15(are)h
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13(simply)h
12(lab)h
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16(that)h
14(de\014ne)h
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14(execution)h
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0 403(whic)s
-1(h)h
14(the)h
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13(exceptions)h
16(that)h
14(they)h
15(handle)h
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19(F)h
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14(example,)h
12(the)h
15(follo)h
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15(handling)h
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-1(ymous)h
12(blo)h
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14(mig)h
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12(app)h
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14(programm)h
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821 552([5])s
0 1225(In)s
12(the)h
13(ab)h
1(o)h
-1(v)h
-1(e)h
12(example,)h
10(the)h
13(co)h
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12(the)h
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12(exceptions)h
14(will)h
10(b)h
1(e)h
0 1274(caugh)s
-1(t.)h
17(The)h
11(co)h
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11(that)h
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419(should)h
16(they)h
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293(.)h
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14(further)h
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15(handler)h
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14(it.)h
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11(most)h
10(imp)h
1(ortan)h
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11(is)h
11(that)h
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0 1548(to)s
14(the)h
15(nearest)h
244(enclosing)h
14(exception)h
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19(This)h
14(means)h
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12(the)h
15(shared)h
15(kno)h
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0 1598(of)s
14(the)h
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16(an)h
15(exception)h
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1(o)h
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0 1698(Dangerous)s
15(b)h
1(ecause)h
16(a)h
15(programm)h
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14(can)h
15(co)h
1(de)h
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cmti10.300 sf
[<038207C20FEC08381008001000200040008001000200040008081008383067F043E081
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965 2770(7)s
7 @eop
8 @bop0
cmbx10.432 sf
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C0038003C003800380038007800380070007000E0007001C0007003800070070000E01C0
00FFFF0000>
32 28 -3 27 31] 68 dc
cmtt10.300 sf
[<03E30007FF001FFF003E1F003C0F00780F00780700700700F00000E00000E00000E000
00E00000E03F80E07FC0E03F80F00700700700780F00780F003C0F003E1F001FFF0007FF
0003E700>
24 25 -2 24 22] 71 dc
[<FFF0FFF0FFF0E000E000E000E000E000E000E000E000E000E000E000E000E000E000E0
00E000E000E000E000E000E000E000E000E000E000E000FFF0FFF0FFF0>
16 32 -8 28 22] 91 dc
[<FFF0FFF0FFF00070007000700070007000700070007000700070007000700070007000
7000700070007000700070007000700070007000700070FFF0FFF0FFF0>
16 32 -1 28 22] 93 dc
[<001F80007F8001FF8001E00001C00001C00001C00001C00001C00001C00001C00001C0
0001C00003C0007F8000FF0000FF00007F800003C00001C00001C00001C00001C00001C0
0001C00001C00001C00001C00001E00001FF80007F80001F80>
24 32 -2 28 22] 123 dc
[<FC0000FF0000FFC00003C00001C00001C00001C00001C00001C00001C00001C00001C0
0001C00001E00000FF00007F80007F8000FF0001E00001C00001C00001C00001C00001C0
0001C00001C00001C00001C00003C000FFC000FF0000FC0000>
24 32 -2 28 22] 125 dc
8 @bop1
cmbx10.300 sf
772 42(Z)s
595 2345(Z)s
cmsy10.300 sf
813 42(\021)s
62 91(f)s
215 1137(g)s
636 2345(\021)s
62 2395(f)s
83 2495(g)s
cmbx10.432 sf
0 1885(1.6)s
24(Ho)h
-2(w)h
23(to)h
23(Use)h
22(This)h
22(P)h
-2(ac)h
-2(k)h
-4(age)h
cmr7.300 sf
0 1187(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
0 2545(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
cmsl10.300 sf
0 42(Example)s
12(of)h
14(single-p)h
1(oin)h
-1(t)h
13(error)h
14(handling)h
0 2345(Example)s
12(exception)h
15(de\014nition)h
cmti10.300 sf
0 1486(Summary:)s
1814 1536(actively)s
1102 1586(something)s
1450 1636(active)s
13(statuses)h
0 2046(STEP)s
17(1:)h
22(De\014ne)h
18(the)h
16(exc)h
-2(eption.)h
486 2619(exc)s
-2(eption)h
19(identi\014er)h
621(exc)h
-2(eption)h
19(description)h
cmtt10.300 sf
83 141(EX_BEGIN)s
148 191(f_file_t)s
21(file1,)h
20(file2;)h
148 241(char)s
21(line[1000];)h
148 291(f_open\(file1,re)s
-1(ad,")h
-1(sloth)h
-1(.dat")h
-1(\);)h
148 340(f_open\(file2,wr)s
-1(ite,)h
-1("walr)h
-1(us.da)h
-1(t"\);)h
148 390(while)s
21(\(!f_eof\(file1)h
-1(\)\))h
192 440({)s
214 490(f_readline)s
20(\(file1,lin)h
-1(e,100)h
-1(0\);)h
214 540(f_writeline\()s
-1(file)h
-1(2,lin)h
-1(e,100)h
-1(0\);)h
192 589(})s
148 639(fclose\(file1\);)s
148 689(fclose\(file2\);)s
83 739(EX_FORGET)s
148 789(EX_WHEN\(f_open_)s
-1(ex)h
20(\))h
21(goto)h
21(f_handle;)h
148 839(EX_WHEN\(f_read_)s
-1(ex)h
20(\))h
21(goto)h
21(f_handle;)h
148 888(EX_WHEN\(f_write)s
-1(_ex\))h
19(goto)h
21(f_handle;)h
148 938(EX_WHEN\(f_close)s
-1(_ex\))h
148 988(f_handle:)s
214 1038(f_delete\(fil)s
-1(e2\);)h
214 1088(printf\("Erro)s
-1(r)h
20(performing)h
20(copy."\);)h
83 1137(EX_END)s
473 2246(EX)s
16(LOCAL)h
83 2445(EX_LOCAL\(buf_)s
-1(full,)h
-1("buf)h
-1(_full)h
-1(:)h
20(Buffer)h
21(is)h
21(full)h
21(exception."\))h
-1(;)h
0 2669(EX)s
15(LOCAL)h
1334(buf)h
15(full)h
cmr10.300 sf
707 42([10])s
0 1262(In)s
13(the)h
14(ab)h
1(o)h
-1(v)h
-1(e)h
12(co)h
1(de,)h
14(a)h
12(single)h
13(exception)h
14(handler)h
13(handles)h
13(all)h
12(the)h
13(error)h
14(conditions)h
13(that)h
13(migh)h
-1(t)h
11(arise)h
13(during)h
13(all)h
11(the)h
0 1312(\014le)s
13(op)h
1(erations.)h
18(The)h
14(resultan)h
-1(t)h
14(co)h
1(de)h
14(is)h
13(far)h
13(cleaner)h
14(than)h
13(the)h
14(co)h
1(de)h
14(that)h
14(w)h
-1(ould)h
12(b)h
1(e)h
14(necessary)h
15(if)h
13(the)h
14(status)h
14(of)h
12(eac)h
-1(h)h
0 1362(call)s
14(had)h
15(to)h
15(b)h
1(e)h
16(c)h
-1(hec)h
-1(k)h
-1(ed)h
17(indep)h
1(enden)h
-1(tly)h
-3(.)h
22(Using)h
15(exceptions,)h
16(the)h
16(normal)h
13(and)h
15(the)h
16(exceptional)h
15(cases)h
16(can)h
16(eac)h
-1(h)h
15(b)h
1(e)h
0 1411(expressed)s
16(clearly)h
-3(.)h
215 1486(There)s
21(is)h
19(no)h
20(doubt)h
19(that,)h
21(when)h
20(misused,)h
20(exceptions)h
21(can)h
20(b)h
1(e)h
20(an)h
19(extremely)h
20(dangerous)h
20(language)h
0 1536(construct.)s
19(Ho)h
-1(w)h
-1(ev)h
-1(er,)h
14(they)h
13(also)h
13(ha)h
-1(v)h
-1(e)h
13(the)h
14(outstanding)h
13(qualit)h
-1(y)h
11(of)h
13(enabling)h
12(functions)h
13(to)h
14(b)h
1(e)h
13(written)h
14(that)h
0 1586(indicate)s
12(errors,)h
12(th)h
-1(us)h
12(ensuring)h
13(either)h
12(that)h
12(the)h
12(clien)h
-1(t)h
11(co)h
1(de)h
13(do)h
1(es)h
205(ab)h
1(out)h
11(the)h
13(error,)h
12(or)h
12(that)h
11(the)h
13(program)h
0 1636(will)s
11(b)h
1(om)h
-1(b)h
10(with)h
12(an)h
12(unhandled)h
12(exception)h
13(error.)h
18(In)h
13(this)h
12(capacit)h
-1(y)h
12(exceptions)h
13(act)h
12(as)h
272(.)h
17(In)h
13(addition,)h
0 1685(exceptions)s
13(allo)h
-1(w)h
11(error)h
13(handling)h
11(to)h
12(b)h
1(e)h
13(separated)h
13(from)h
11(ordinary)h
11(execution.)h
18(These)h
14(t)h
-1(w)h
-1(o)h
12(prop)h
1(erties)h
13(of)h
12(exceptions)h
0 1735(mean)s
13(that,)h
13(in)h
14(m)h
-1(y)h
12(opinion,)h
12(they)h
14(impro)h
-1(v)h
-1(e)h
12(reliabilit)h
-1(y)h
12(on)h
14(balance,)h
13(and)h
14(are)h
14(a)h
14(w)h
-1(orth)h
-1(y)h
14(programm)h
-1(i)h
-1(ng)h
12(to)h
1(ol.)h
0 1972(Using)s
14(this)h
14(pac)h
-1(k)h
-2(age)h
13(is)h
14(easy)h
14(-)h
14(just)h
14(follo)h
-1(w)h
12(the)h
14(follo)h
-1(wing)h
12(steps!)h
589 2046(Before)s
16(raising)h
15(or)h
16(catc)h
-1(hing)h
16(an)h
15(exception,)h
16(y)h
-1(ou)h
16(ha)h
-1(v)h
-1(e)h
15(to)h
16(de\014ne)h
16(it)h
16(and)h
15(mak)h
-1(e)h
14(it)h
0 2096(visible)s
15(to)h
15(ev)h
-1(ery)h
16(en)h
-1(tit)h
-1(y)h
15(that)h
16(needs)h
17(to)h
15(refer)h
16(to)h
16(the)h
16(exception.)h
23(T)h
-3(o)h
15(de\014ne)h
16(it,)h
15(y)h
-1(ou)h
15(need)h
16(to)h
16(think)h
15(of)h
14(an)h
16(iden)h
-1(ti\014er)h
0 2146(that)s
14(will)h
13(b)h
1(e)h
15(used)h
15(to)h
14(represen)h
-1(t)h
17(the)h
14(exception,)h
15(and)h
14(y)h
-1(ou)h
14(need)h
15(to)h
14(think)h
14(of)h
14(a)h
14(short)h
14(\(one-line\))h
15(description)h
14(for)h
14(the)h
0 2196(exception.)s
25(Ha)h
-1(ving)h
14(done)h
16(this,)h
16(if)h
15(y)h
-1(ou)h
16(w)h
-1(an)h
-1(t)h
15(the)h
17(exception)h
16(to)h
16(b)h
1(e)h
16(visible)h
15(only)h
15(within)h
15(the)h
17(curren)h
-1(t)h
17(program)h
14(\014le,)h
0 2246(insert)s
15(a)h
13(call)h
13(to)h
14(the)h
15(macro)h
194(in)h
14(the)h
14(v)h
-2(ariable)h
13(section.)h
19(F)h
-3(or)h
13(example:)h
529 2345([11])s
0 2619(The)s
18(\014rst)h
17(argumen)h
-1(t)h
16(is)h
17(the)h
383(and)h
17(the)h
17(second)h
19(argumen)h
-1(t)h
16(is)h
17(the)h
401(.)h
28(The)h
189 2669(macro)s
19(translates)h
21(in)h
-1(to)h
20(a)h
20(string)h
20(constan)h
-1(t)h
21(declaration)h
20(ha)h
-1(ving)h
20(the)h
21(name)h
207(and)h
21(the)h
21(v)h
-2(alue)h
965 2770(8)s
14 2 520 2246 r
14 2 47 2669 r
14 2 1572 2669 r
8 @eop
9 @bop0
cmti10.300 sf
[<003C0000C3000101800201800201C00441C00441C00841C00841C00841C01083801083
801107000E0600000C0000180000300000C0000100000600000800001001001002002002
004006007E0C00C7F80083F80080E000>
24 29 -4 27 21] 50 dc
[<01FFF800003C0E00003807000038038000380380003803800070078000700780007007
8000700F0000E00E0000E01C0000E0700000FFC00001C0C00001C0600001C0700001C070
00038070000380700003807000038070000700F0000700F0400700F0400700F0800F0078
80FFE0790000001E00>
32 29 -3 27 30] 82 dc
[<003E0000C1800101800200C00400C00440C00841C00841C00841C00883800703800007
00000E0001F800003800000C00000C00000E00000E00000E00000E00700E00E01C00801C
0080380080300040600021C0001F0000>
24 29 -4 27 21] 51 dc
[<0003F020001E0C60003002E000E003C001C001C0038001C0070000C00E0000801E0000
801C0000803C0000803C000000780000007800000078000000F0000000F0000000F00000
00F0000000F0000400F0000400F0000400F0000800700008007000100038002000180040
000C0180000706000001F80000>
32 30 -6 28 30] 67 dc
cmsl10.300 sf
[<0FF0FE03C03801C03001C02001C06001C04001E08000E08000E10000E10000E2000072
00007400007C00007800007000003000002000002000004000004000708000F10000F100
00E60000780000>
24 26 0 17 22] 121 dc
9 @bop1
cmbx10.300 sf
625 465(Z)s
648 988(Z)s
493 1885(Z)s
cmsy10.300 sf
666 465(\021)s
62 515(f)s
83 614(g)s
691 988(\021)s
62 1038(f)s
83 1237(g)s
534 1885(\021)s
62 1934(f)s
83 2482(g)s
cmti10.300 sf
0 739(STEP)s
14(2:)h
18(R)h
-2(aise)h
14(the)h
13(exc)h
-2(eption.)h
0 1636(STEP)s
11(3:)h
17(Catch)h
11(the)h
11(exc)h
-2(eption.)h
1783 1685(exc)s
-2(eption)h
0 1735(blo)s
-2(ck)h
cmr7.300 sf
0 664(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
0 1287(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
0 2532(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
cmsl10.300 sf
0 465(Example)s
12(exception)h
15(declaration)h
0 988(Example)s
12(of)h
14(raising)h
13(an)h
13(exception)h
0 1885(Exception)s
14(blo)h
1(c)h
-1(k)h
14(syn)h
-1(tax)h
cmtt10.300 sf
0 42("buf)s
15(full:)h
42(Buff...")h
1664 266(EX)s
16(LOCAL)h
97 315(EX)s
15(EXPORT)h
384(EX)h
15(EXCEPT)h
654(EX)h
15(EXCEPT)h
83 565(EX_EXCEPT\(buf)s
-1(_full)h
-1(\);)h
583 789(.c)s
258(EX)h
15(LOCAL)h
70(EX)h
15(EXPORT)h
192(.c)h
467 839(EX)s
15(EXCEPT)h
342(EX)h
15(RAISE)h
138(EX)h
15(RAISE)h
83 1088(/*)s
21(If)h
22(the)h
21(buffer)h
21(is)h
21(full,)h
21(raise)h
20(the)h
22(full)h
21(buffer)h
20(exception.)h
20(*/)h
83 1137(if)s
21(\(bufsiz)h
21(>)h
21(BUF_MAX\))h
148 1187(EX_RAISE\(buf_fu)s
-1(l\);)h
380 1362(EX)s
16(RAISE)h
919 1461(buf)s
15(ful)h
586 1735(EX)s
171(EX)h
15(BEGIN)h
25(EX)h
15(FORGET)h
25(EX)h
15(WHEN)h
95(EX)h
15(END)h
83 1984(EX_BEGIN)s
148 2034(<Code)s
21(that)h
21(might)h
21(raise)h
21(an)h
21(exception>)h
83 2084(EX_FORGET)s
148 2134(EX_WHEN\(<name)s
20(of)h
21(exception)h
20(1>\))h
214 2183(<Code)s
21(to)h
21(handle)h
20(exception)h
20(1>)h
148 2233(EX_WHEN\(<name)s
20(of)h
21(exception)h
20(2>\))h
214 2283(<Code)s
21(to)h
21(handle)h
20(exception)h
20(2>)h
148 2333(EX_WHEN\(<name)s
20(of)h
21(exception)h
20(3>\))h
214 2383(<Code)s
21(to)h
21(handle)h
20(exception)h
20(3>)h
83 2433(EX_END)s
478 2607(EX)s
16(BEGIN)h
71(EX)h
15(END)h
1035({})h
cmr10.300 sf
431 42(.)s
32(It)h
19(is)h
19(imp)h
1(ortan)h
-1(t)h
17(that)h
19(the)h
19(exception)h
20(iden)h
-1(tifer)h
19(b)h
1(e)h
19(unique)h
19(within)h
19(its)h
18(scop)h
1(e)h
21(as)h
19(it)h
18(is)h
0 91(implem)s
-1(en)h
-1(ted)h
16(b)h
-1(y)h
17(an)h
17(ordinary)h
17(constan)h
-1(t.)h
28(It)h
17(is)h
18(also)h
16(v)h
-1(ery)h
18(imp)h
1(ortan)h
-1(t)h
15(that)h
17(the)h
18(description)h
18(of)h
17(the)h
17(exception)h
18(b)h
1(e)h
0 141(unique)s
9(within)h
9(the)h
10(set)h
10(of)h
9(exceptions)h
10(in)h
9(the)h
10(program.)h
15(If)h
9(eac)h
-1(h)h
10(exception)h
10(has)h
9(a)h
9(unique)h
10(description,)h
10(then)h
10(unhandled)h
0 191(exceptions)s
15(\(see)h
15(later\))h
14(can)h
14(b)h
1(e)h
15(easily)h
13(iden)h
-1(ti\014ed.)h
0 266(If)s
13(y)h
-1(ou)h
14(w)h
-1(an)h
-1(t)h
13(the)h
15(exception)h
14(to)h
14(b)h
1(e)h
14(visible)h
13(within)h
13(all)h
13(clien)h
-1(ts)h
14(of)h
13(the)h
15(mo)h
1(dule)h
12(declaring)h
14(it,)h
13(replace)h
196(ab)h
1(o)h
-1(v)h
-1(e)h
0 315(with)s
222(and)h
16(insert)h
17(a)h
16(call)h
15(to)h
222(in)h
16(the)h
17(header)h
17(\014le)h
16(for)h
16(the)h
17(mo)h
1(dule.)h
229(requires)h
18(just)h
0 365(the)s
14(v)h
-2(ariable)h
13(name.)h
559 465([12])s
551 739(Ha)s
-1(ving)h
12(completed)h
11(step)h
14(1,)h
12(y)h
-1(ou)h
11(can)h
13(no)h
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12(raise)h
12(the)h
13(exception)h
13(in)h
12(an)h
-1(y)h
12(mo)h
1(dule)h
11(that)h
0 789(can)s
17(see)h
18(the)h
17(exception)h
18(\(i.e.)h
26(the)h
78(\014le)h
17(with)h
17(the)h
202(or)h
208(,)h
15(and)h
17(an)h
-1(y)h
76(\014le)h
17(that)h
17(includes)h
17(the)h
0 839(header)s
13(\014le)h
12(con)h
-1(taining)h
11(the)h
204(\))h
11(simply)h
10(b)h
1(e)h
12(calling)h
180(.)h
11(Note:)h
197(is)h
12(syn)h
-1(tactically)h
12(equiv)h
-2(alen)h
-1(t)h
0 888(to)s
14(a)h
13(comp)h
1(ound)h
13(statemen)h
-1(t.)h
582 988([13])s
0 1362(The)s
10(e\013ect)h
12(of)h
10(a)h
9(call)h
10(to)h
188(is)h
10(that)h
10(con)h
-1(trol)h
9(will)h
9(lea)h
-1(v)h
-1(e)h
10(the)h
10(curren)h
-1(t)h
12(function,)h
10(and)h
10(the)h
10(stac)h
-1(k)h
11(will)h
8(un)h
-1(wind)h
10(un)h
-1(til)h
9(a)h
0 1411(function)s
11(is)h
12(encoun)h
-1(tered)h
14(whose)h
12(con)h
-1(text)h
12(con)h
-1(tains)h
12(an)h
11(activ)h
-1(e)h
12(exception)h
13(handler)h
12(construct)h
13(that)h
12(sp)h
1(eci\014es)h
13(a)h
12(catc)h
-1(her)h
0 1461(for)s
12(the)h
13(exception)h
13(that)h
12(has)h
12(b)h
1(een)h
13(raised)h
13(\(in)h
12(this)h
12(case)h
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0 1511(will)s
13(b)h
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0 1561(giving)s
12(the)h
15(description)h
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549 1636(Catc)s
-1(hing)h
9(exceptions)h
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10(little)h
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16(T)h
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0 1685(y)s
-1(ou)h
14(need)h
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15(sp)h
1(ecify)h
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101 1735(construct)s
16(pro)h
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88(macros)h
183(,)h
204(,)h
173(and)h
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0 1785(example:)s
427 1885([14])s
0 2607(The)s
18(en)h
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18(\(from)h
202(to)h
143(\))h
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18(\()h
44(\).)h
0 2657(Its)s
16(seman)h
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16(that)h
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16(co)h
1(de)h
15(that)h
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14(no)h
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965 2770(9)s
14 2 91 42 r
14 2 1711 266 r
14 2 144 315 r
14 2 719 315 r
14 2 1564 315 r
14 2 932 789 r
14 2 1171 789 r
14 2 514 839 r
14 2 1047 839 r
14 2 1354 839 r
14 2 427 1362 r
14 2 988 1461 r
14 2 633 1735 r
14 2 848 1735 r
14 2 1042 1735 r
14 2 1258 1735 r
14 2 1500 1735 r
14 2 525 2607 r
14 2 766 2607 r
9 @eop
10 @bop0
10 @bop1
cmr10.300 sf
0 42(terminates.)s
17(If)h
11(an)h
11(exception)h
13(is)h
11(raised,)h
12(the)h
12(co)h
1(de)h
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29(F)h
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19(the)h
17(sp)h
1(eci\014cation)h
0 141(section.)s
954 2770(10)s
10 @eop
11 @bop0
cmsl10.300 sf
[<07FF87FE00FE01F0007C01C0003C0180003E0100001E0200001E0400001F0800000F18
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32 28 -1 27 31] 88 dc
[<0FFFFFC000F803C000F001C000F0008000F0008000F0008000F0008001E0008001E040
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32 28 -2 27 27] 70 dc
[<0FFF9FFE00F803E000F003C000F003C000F003C000F003C000F003C001E0078001E007
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32 28 -2 27 31] 72 dc
[<0FFFF80000F80E0000F0078000F003C000F001C000F001E000F001E001E003C001E003
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32 29 -2 27 31] 82 dc
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32 28 -2 27 32] 68 dc
cmbx10.518 sf
[<003FF00001FFFE0007FFFF801FC07FE03F003FF07C001FF87F000FFCFF8007FEFFC007
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32 46 -4 45 41] 50 dc
[<001FF0038000FFFF078003FFFFCF8007F00FFF801FC001FF801F80007F803F00003F80
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40 49 -5 48 46] 83 dc
[<00380000380000380000380000380000780000780000780000F80000F80001F80003F8
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24 46 -2 45 32] 116 dc
[<007FF8000003FFFF00000FFFFFC0001FE01FF0001FF007F8001FF007FC001FF003FC00
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40 32 -2 31 40] 97 dc
[<0007FF00007FFFE001FFFFF803FC03FC07F807FC0FF007FC1FE007FC3FC007FC3FC003
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32 32 -3 31 37] 99 dc
[<FFFFFFFFE000FFFFFFFFFE00FFFFFFFFFF8000FFC001FFE000FFC0003FF000FFC0001F
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48 49 -2 48 56] 80 dc
[<03F007F8000FF000FFF03FFF007FFE00FFF07FFF80FFFF00FFF1F03FC3E07F800FF3C0
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0FF0001FE007F8000FF0001FE007F8000FF0001FE007F8000FF0001FE007F8000FF0001F
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0FF0001FE007F8000FF0001FE007F8000FF0001FE007F8000FF0001FE007F8000FF0001F
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64 32 -3 31 71] 109 dc
[<00FF870007FFEF001FFFFF003F007F007C001F007C000F00F8000F00F8000700FC0007
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32 32 -3 31 33] 115 dc
[<0007FE0000003FFFC00000FFFFF00003FC03FC0007F000FE000FE0007F001FC0003F80
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40 32 -2 31 41] 111 dc
[<0000FF000007FFC0001FFFF0007FC7F000FF0FF801FF0FF801FE0FF803FE0FF803FC0F
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32 50 -2 49 25] 102 dc
[<01F800000000FFF800000000FFF800000000FFF8000000000FF80000000007F8000000
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0007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF0
0007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF0
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48 50 -3 49 46] 104 dc
[<01F8000000FFF8000000FFF8000000FFF80000000FF800000007F800000007F8000000
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40 50 -2 49 44] 107 dc
[<001FF007E000FFFE3FF003FFFFFFF807F83FF1F80FE00FE1F81FE00FF1F81FC007F060
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40 47 -2 31 41] 103 dc
cmbx10.432 sf
[<FFFFFCFFFFFCFFFFFC01FE0001FE0001FE0001FE0001FE0001FE0001FE0001FE0001FE
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24 41 -2 40 26] 73 dc
cmr7.300 sf
[<1F0060C06060F070F030603000700070006000C001C00180020004000810101020207F
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16 19 -2 18 17] 50 dc
cmtt10.300 sf
[<0387000387000387000387000387000387007FFFC0FFFFE0FFFFE0070E00070E00070E
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24 25 -1 24 22] 35 dc
cmr10.300 sf
[<00030003000700060006000E000C001C0018001800380030003000700060006000E000
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16 41 -2 30 21] 47 dc
11 @bop1
cmsy10.300 sf
426 903(\021)s
62 953(f)s
83 1102(g)s
442 1862(\021)s
62 1912(f)s
83 2111(g)s
cmsl10.300 sf
0 903(Sym)s
-1(b)h
1(ol)h
27(EX)h
15(F)h
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0 1862(Sym)s
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1(ol)h
27(EX)h
15(THRD)h
cmbx10.518 sf
0 50(2)s
28(Static)h
27(P)h
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25(of)h
28(this)h
26(P)h
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cmbx10.432 sf
0 293(2.1)s
24(Inline)h
21(Switc)h
-2(h)h
21(P)h
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0 1575(2.2)s
24(Threading)h
23(P)h
-2(aramete)h
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cmr7.300 sf
0 1152(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
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0 2161(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
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13(in)h
11(de\014nition)h
13(32.)h
cmtt10.300 sf
757 654(EX)s
16(FAST)h
74(FALSE)h
954 704(EX)s
15(FAST)h
74(TRUE)h
395 803(FALSE)s
1278(TRUE)h
83 1002(#define)s
20(_EX_FAST)h
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83 1052(/*)s
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765 1227(link)s
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83 1961(#define)s
20(_EX_THRD)h
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83 2011(/*)s
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83 2061(/*)s
21(set)h
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21(calls)h
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22(in)h
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cmr10.300 sf
0 137(This)s
14(pac)h
-1(k)h
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13(has)h
14(a)h
14(few)h
14(static)h
14(\(compile-tim)h
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11(its)h
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0 380(Exceptions)s
20(are)h
20(tric)h
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19(constructs,)h
22(particularly)h
18(in)h
19(a)h
19(programm)h
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19(C,)h
18(and)h
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21(to)h
0 430(incorp)s
1(orate)h
13(lots)h
12(of)h
11(c)h
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13(in)h
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0 479(language)s
13(construct)h
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0 529(as)s
14(e\016cien)h
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14(trade-o\013s.)h
18(Ho)h
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13(this)h
0 1326(lev)s
-1(el)h
13(of)h
13(parameterization)h
12(gran)h
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13(could)h
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13(the)h
14(c)h
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14(is)h
13(magic)h
0 1376(n)s
-1(um)h
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1(er)h
13(c)h
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-1(king)h
14(whic)h
-1(h)h
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1(dule)h
12(with)h
14(c)h
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0 1426(on)s
14(migh)h
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12(complain)h
12(ab)h
1(out)h
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15(magic)h
12(n)h
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1(dule)h
12(with)h
14(c)h
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15(o\013.)h
0 1663(The)s
10(parameter)h
182(tells)h
10(the)h
10(pac)h
-1(k)h
-2(age)h
9(whether)h
12(it)h
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9(a)h
9(m)h
-1(ulti-threaded)h
9(en)h
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9(\()h
88(\))h
0 1712(\(th)s
-1(us)h
15(prohibiting)h
13(single-instance)h
15(global)h
13(v)h
-2(ariables\).)h
19(If)h
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14(set)h
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15(to)h
102(,)h
13(y)h
-1(ou)h
14(will)h
13(also)h
14(need)h
15(to)h
14(mo)h
1(dify)h
12(the)h
0 1762(macros)s
13(for)h
14(global)h
12(v)h
-2(ariables)h
13(in)h
13(the)h
15(next)h
14(section.)h
364 1862([16])s
954 2770(11)s
14 2 744 654 r
14 2 804 654 r
14 2 941 704 r
14 2 1001 704 r
13 2 151 903 r
13 2 225 903 r
14 2 278 1663 r
14 2 338 1663 r
13 2 151 1862 r
13 2 225 1862 r
11 @eop
12 @bop0
cmsl10.300 sf
[<0FF80007FC00F8000FC000BC000F8000BC00178000BC00178000BC00278000BC002780
011E004F00011E004F00011E008F00011E008F00011E010F00010F010F00020F021E0002
0F021E00020F041E00020F041E000207881E000207901E000407903C000407A03C000407
A03C000407C03C000403C03C000403803C000C038078001E03007C00FF8307FF80>
40 28 -2 27 38] 77 dc
[<FF0FE03C03801C03001C02001C06001C04001E08000E08000E10000E10000E20000720
0007400007C000078000070000030000020000>
24 18 -4 17 22] 118 dc
cmbx10.432 sf
[<0007F0003FFC00FE3E01FC7F03F87F03F87F07F07F07F03E07F00007F00007F00007F0
0007F00007F00007F000FFFFC0FFFFC0FFFFC007F00007F00007F00007F00007F00007F0
0007F00007F00007F00007F00007F00007F00007F00007F00007F00007F00007F00007F0
0007F00007F00007F0007FFF807FFF807FFF80>
24 42 -2 41 21] 102 dc
[<00007FE003000003FFFC0F00001FFFFF1F00007FF00FFF0000FF8001FF0003FE0000FF
0007FC00007F000FF800003F000FF000001F001FE000001F003FE000000F003FC000000F
007FC0000007007FC0000007007FC000000700FF8000000000FF8000000000FF80000000
00FF8000000000FF8000000000FF8000000000FF8000000000FF8000000000FF80000000
00FF8001FFFFF8FF8001FFFFF87FC001FFFFF87FC00000FF007FC00000FF003FC00000FF
003FE00000FF001FE00000FF000FF00000FF000FF80000FF0007FC0000FF0003FE0001FF
0000FF8001FF00007FF007FF00001FFFFFBF000003FFFE0F0000007FF00300>
48 41 -4 40 54] 71 dc
[<FFFFF0003FFF80FFFFF0003FFF80FFFFF0003FFF8003FE000001E00001FE000001C000
01FF000003C00000FF000003800000FF0000038000007F8000070000007F800007000000
7FC0000F0000003FC0000E0000003FE0001E0000001FE0001C0000001FF0001C0000000F
F000380000000FF0003800000007F8007000000007F8007000000007FC00F000000003FC
00E000000003FE01E000000001FE01C000000001FF01C000000000FF038000000000FF03
8000000000FF8780000000007F8700000000007FCF00000000003FCE00000000003FFE00
000000001FFC00000000001FFC00000000000FF800000000000FF800000000000FF80000
00000007F0000000000007F0000000000003E0000000000003E0000000000001C0000000>
56 41 -1 40 52] 86 dc
12 @bop1
cmsy10.300 sf
569 652(\021)s
62 702(f)s
83 1548(g)s
cmsl10.300 sf
0 652(Macros)s
14(for)h
14(global)h
12(v)h
-2(ariables)h
cmbx10.432 sf
0 42(2.3)s
24(Macros)h
24(for)h
23(Global)h
22(V)h
-6(ariables)h
cmr7.300 sf
0 1598(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(32.)h
cmtt10.300 sf
837 129(ex)s
15(curr)h
46(ex)h
15(id)h
130(ex)h
16(info)h
83 751(#if)s
21(!_EX_THRD)h
83 801(/*)s
21(Non-threaded)h
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83 851(#define)s
20(_EX_CURR)h
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83 901(#define)s
42(EX_ID)h
65(\(\(p_ex_t\))h
19(_ex_id\))h
83 951(#define)s
20(_EX_ID)h
65(_ex_id)h
83 1000(#define)s
42(EX_INFO)h
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83 1050(#else)s
83 1100(/*)s
21(Threaded)h
21(system)h
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20(to)h
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216(*/)h
83 1150(/*)s
21(To)h
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83 1200(/*)s
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151(*/)h
83 1299(#define)s
20(_EX_CURR)h
238(\(*)h
22(\(\(_ex_cx_t)h
20(*\))h
21(k_var\(51\)\)\))h
83 1349(#define)s
42(EX_ID)h
65(\(\(p_ex_t\))h
19(\(*)h
22(\(\(p_ex_t)h
64(*\))h
21(k_var\(52\)\)\)\))h
83 1399(#define)s
20(_EX_ID)h
282(\(*)h
22(\(\(p_ex_t)h
64(*\))h
21(k_var\(52\)\)\))h
83 1449(#define)s
42(EX_INFO)h
238(\(*)h
22(\(\(ptrint)h
64(*\))h
21(k_var\(53\)\)\))h
83 1499(#endif)s
172 1723(ptrint)s
376 1797(ex)s
16(curr)h
1243(EX)h
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0 1847(EX)s
15(INFO)h
1569(EX)h
15(ID)h
1135 1897(EX)s
15(ID)h
494(EX)h
15(ID)h
224 1947(EX)s
15(ID)h
1648 2071(EX)s
16(CURR)h
48 2121(NULL)s
cmr10.300 sf
0 129(This)s
18(pac)h
-1(k)h
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17(uses)h
19(three)h
20(global)h
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180(,)h
137(,)h
18(and)h
198(|)h
17(whic)h
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18(ro)h
1(ot)h
18(the)h
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0 178(con)s
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11(and)h
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11(informa)h
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7(ab)h
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17(Unfortunately)h
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10(global)h
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0 228(suc)s
-1(h)h
15(as)h
15(these)h
16(cause)h
16(problems)h
14(on)h
14(m)h
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14(systems)h
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15(require)h
16(that)h
14(separate)h
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16(of)h
14(all)h
14(global)h
0 278(v)s
-2(ariables)h
13(b)h
1(e)h
15(main)h
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12(for)h
14(eac)h
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0 353(The)s
15(solution)h
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15(this)h
14(problem)h
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13(through)h
15(a)h
0 403(set)s
17(of)h
15(lv)h
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13(macros.)h
23(These)h
18(macros)h
15(can)h
16(then)h
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17(con\014gured)h
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16(p)h
1(oin)h
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15(either)h
17(directly)h
16(to)h
16(a)h
16(single)h
15(set)h
0 452(of)s
17(global)h
15(v)h
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17(\(non-threaded)h
18(system\),)h
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0 502(approac)s
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1(elo)h
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491 652([17])s
0 1673(\(The)s
13(51,)h
12(52)h
12(and)h
13(so)h
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13(three)h
14(global)h
11(v)h
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12(will)h
0 1723(\014t)s
14(in)h
-1(to)h
13(a)h
146(.\).)h
0 1797(The)s
13(global)h
12(v)h
-2(ariable)h
187(is)h
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13(supp)h
1(osed)h
15(to)h
12(b)h
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13(so)h
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13(sym)h
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11(starts)h
14(with)h
29(.)h
133(and)h
160 1847(are)s
14(in)h
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13(b)h
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13(to)h
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14(write)h
14(to)h
130(and)h
14(so)h
0 1897(t)s
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15(forms)h
15(ha)h
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14(\()h
119(\))h
16(and)h
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16(form)h
14(\()h
103(\).)h
16(The)h
0 1947(t)s
-1(yp)h
1(e)h
13(cast)h
14(in)h
128(is)h
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14(the)h
13(v)h
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12(from)h
11(an)h
13(lv)h
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12(to)h
12(an)h
13(rv)h
-2(alue)h
12(\(ANSI)h
13(6.3.4)h
11(\(fo)h
1(otnote)h
13(44\)\))h
0 1997(so)s
14(that)h
14(the)h
14(clien)h
-1(t)h
14(can't)h
14(write)h
14(to)h
14(it.)h
0 2071(If)s
13(these)h
15(macros)h
12(are)h
14(c)h
-1(hanged)h
14(to)h
13(p)h
1(oin)h
-1(t)h
13(to)h
13(thread)h
14(instance)h
15(v)h
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12(b)h
1(e)h
14(sure)h
14(to)h
14(initiali)h
-1(ze)h
13(the)h
189(v)h
-2(ariable)h
0 2121(to)s
109(\(b)h
1(efore)h
12(p)h
1(erforming)h
10(an)h
-1(y)h
10(exception)h
12(actions\))h
11(if)h
11(y)h
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11(unhandled)h
11(exceptions)h
12(to)h
11(b)h
1(e)h
12(correctly)h
12(detected.)h
0 2171(The)s
14(other)h
15(t)h
-1(w)h
-1(o)h
13(v)h
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13(don't)h
14(need)h
15(to)h
13(b)h
1(e)h
15(initiali)h
-1(zed.)h
0 2246(Because)s
17(these)h
16(macros)h
14(can)h
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15(to)h
15(function)h
14(calls,)h
15(an)h
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14(in)h
14(the)h
16(rest)h
16(of)h
14(the)h
15(pac)h
-1(k)h
-2(age)h
0 2296(to)s
13(minim)h
-2(ize)h
12(reference)h
1(s)h
15(to)h
13(them)h
13(\(e.g.)h
17(assign)h
13(their)h
14(v)h
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13(to)h
13(temp)h
1(orary)h
13(v)h
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12(and)h
13(manipulate)h
12(them)h
12(rather)h
0 2345(than)s
14(using)h
13(the)h
15(macro)h
13(itself)h
13(m)h
-1(ultipl)h
-1(e)h
13(times\).)h
954 2770(12)s
14 2 824 129 r
14 2 884 129 r
14 2 1017 129 r
14 2 1077 129 r
14 2 1250 129 r
14 2 1310 129 r
14 2 363 1797 r
14 2 423 1797 r
14 2 1725 1797 r
14 2 1814 1797 r
14 2 47 1847 r
14 2 1763 1847 r
14 2 1122 1897 r
14 2 1182 1897 r
14 2 1779 1897 r
14 2 271 1947 r
14 2 1635 2071 r
14 2 1695 2071 r
12 @eop
13 @bop0
cmbx10.518 sf
[<000FFC0000007FFF800001F01FE00003C00FF00007800FF8000FE007FC001FF007FE00
1FF807FE001FF807FE001FF807FE001FF807FE001FF807FE000FF007FE0007E007FC0001
800FFC0000000FF80000000FF80000001FF00000003FE00000007F8000001FFE0000001F
FC0000001FFF800000001FF00000000FF800000007FE00000003FF00000003FF00000001
FF80000001FF800E0001FFC03F8001FFC07FC001FFC0FFE001FFC0FFE001FFC0FFE001FF
C0FFE001FFC0FFE001FF80FFE003FF807FC003FF007F0007FE003F000FFC001FE01FF800
07FFFFE00001FFFF8000001FFC0000>
40 46 -3 45 41] 51 dc
[<01F80FF000FFF87FFE00FFF9FFFF80FFFFE07FE00FFF001FF007FE000FF807FC0007F8
07F80007FC07F80003FE07F80003FE07F80003FE07F80001FF07F80001FF07F80001FF07
F80001FF07F80001FF07F80001FF07F80001FF07F80001FF07F80001FF07F80003FF07F8
0003FE07F80003FE07F80003FC07FC0007FC07FC000FF807FE000FF007FF801FE007FFE0
7FC007F9FFFF8007F87FFE0007F81FE00007F800000007F800000007F800000007F80000
0007F800000007F800000007F800000007F800000007F800000007F800000007F8000000
FFFFC00000FFFFC00000FFFFC00000>
40 46 -2 31 46] 112 dc
[<00001FFC00000001FFFF00000007FFFFC000001FF807E000007FC007F00000FF000FF0
0001FF000FF00001FE000FF00003FC001FF80003FC000FF00003FC000FF00003FC0007E0
0003FC0001800003FC0000000003FC0000000003FC0000000003FC0000000003FC00FFF8
00FFFFFFFFF800FFFFFFFFF800FFFFFFFFF80003FC0007F80003FC0007F80003FC0007F8
0003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F8
0003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F8
0003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F8
0003FC0007F80003FC0007F80003FC0007F80003FC0007F80003FC0007F8007FFFE0FFFF
C07FFFE0FFFFC07FFFE0FFFFC0>
48 50 -1 49 46] 12 dc
[<03F007F80000FFF03FFF0000FFF07FFF8000FFF1F03FC0000FF3C01FE00007F7801FE0
0007F7000FF00007FE000FF00007FC000FF00007FC000FF00007F8000FF00007F8000FF0
0007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF0
0007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF0
0007F8000FF00007F8000FF00007F8000FF00007F8000FF00007F8000FF000FFFFC1FFFF
80FFFFC1FFFF80FFFFC1FFFF80>
48 32 -3 31 46] 110 dc
cmr10.300 sf
[<FFF8000F80000F00000F00000F00000F00000F00000F00000F00000F00000F00000F00
000F00000F00000F00000F00000F00000F00000F00080F00080F00080F00180F00180F00
100F00300F00700F01F0FFFFF0>
24 28 -2 27 26] 76 dc
13 @bop1
cmsy10.300 sf
377 511(\021)s
62 560(f)s
83 1158(g)s
469 1644(\021)s
62 1694(f)s
83 1843(g)s
cmbx10.518 sf
0 50(3)s
28(Sp)h
2(eci\014cation)h
cmbx10.432 sf
0 1357(3.1)s
24(Sp)h
2(eci\014cati)h
-1(on)h
22(Includes)h
0 2042(3.2)s
24(Exception)h
22(T)h
-2(yp)h
2(e)h
cmr7.300 sf
0 1208(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(1.)h
0 1893(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(18.)h
cmtt10.300 sf
1181 137(.h)s
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13 @eop
14 @bop0
cmbx10.432 sf
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48 41 -2 40 52] 88 dc
cmsl10.300 sf
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32 28 -2 27 28] 80 dc
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32 30 -4 28 32] 79 dc
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24 28 -2 27 26] 76 dc
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16 42 0 30 16] 41 dc
cmr10.300 sf
[<60F0F0600000000000000000000060F0F0701010101020204080>
8 26 -4 17 12] 59 dc
14 @bop1
cmbx10.300 sf
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1(e)h
10(an)h
9(expression)h
10(ev)h
-2(aluating)h
0 1872(to)s
13(a)h
12(p)h
1(oin)h
-1(ter)h
13(to)h
13(the)h
14(exception)h
13(to)h
13(b)h
1(e)h
14(raised.)h
18(See)h
13(a)h
13(later)h
13(section)h
14(for)h
12(the)h
14(precise)h
14(seman)h
-1(tics)h
13(of)h
12(an)h
12(exception)h
14(raise.)h
0 1947(This)s
14(macro)h
12(is)h
14(syn)h
-1(tactically)h
13(equiv)h
-2(alen)h
-1(t)h
13(to)h
14(a)h
14(comp)h
1(ound)h
12(statemen)h
-1(t.)h
18(It)h
14(is)h
14(guaran)h
-1(teed)h
14(that)h
14(its)h
14(argumen)h
-1(t)h
13(will)h
12(b)h
1(e)h
0 1997(ev)s
-2(aluated)h
14(exactly)h
14(once.)h
332 2096([22])s
1356 2246([45])s
1354 2345([44])s
954 2770(14)s
14 2 635 42 r
14 2 695 42 r
13 2 215 291 r
13 2 270 291 r
13 2 1123 340 r
13 2 1123 390 r
13 2 1123 440 r
14 2 272 614 r
14 2 555 614 r
14 2 47 863 r
14 2 331 863 r
14 2 969 863 r
14 2 1394 913 r
14 2 1807 913 r
14 2 327 1013 r
21 2 427 1735 r
14 2 248 1822 r
13 2 189 2096 r
13 2 1080 2246 r
13 2 1267 2246 r
13 2 1078 2345 r
13 2 1265 2345 r
14 @eop
15 @bop0
cmti10.300 sf
[<01FFFE00003C0780003803C0003801C0003801C0003801C0007001C0007003C0007003
C00070078000E0070000E00E0000E03C0000FFF80001C01C0001C00E0001C00F0001C00F
0003800F0003800F0003800F0003800F0007001E0007001C0007003C00070078000E01E0
00FFFF8000>
32 28 -3 27 29] 66 dc
cmbx10.432 sf
[<FFFFFFF80000FFFFFFFF8000FFFFFFFFC00003F8001FF00003F8000FF80003F80007FC
0003F80003FC0003F80003FC0003F80003FE0003F80001FE0003F80001FE0003F80001FE
0003F80003FE0003F80003FC0003F80003FC0003F80007F80003F8000FF00003F8001FE0
0003F800FFC00003FFFFFE000003FFFFFFE00003F80007F00003F80003FC0003F80001FE
0003F80001FE0003F80000FF0003F80000FF0003F80000FF8003F80000FF8003F80000FF
8003F80000FF8003F80000FF8003F80000FF8003F80000FF0003F80001FF0003F80003FE
0003F80007FC0003F8001FF800FFFFFFFFF000FFFFFFFFC000FFFFFFFE0000>
48 41 -3 40 49] 66 dc
[<FFFFFFF80000FFFFFFFF8000FFFFFFFFE00003FC001FF80003FC0007FC0003FC0001FE
0003FC0000FF0003FC00007F8003FC00003FC003FC00001FC003FC00001FE003FC00001F
E003FC00000FF003FC00000FF003FC00000FF003FC00000FF003FC00000FF803FC00000F
F803FC00000FF803FC00000FF803FC00000FF803FC00000FF803FC00000FF803FC00000F
F803FC00000FF803FC00000FF803FC00000FF003FC00000FF003FC00000FF003FC00001F
E003FC00001FE003FC00001FC003FC00003FC003FC00007F8003FC00007F0003FC0001FE
0003FC0003FC0003FC001FF800FFFFFFFFE000FFFFFFFF8000FFFFFFFC0000>
48 41 -3 40 53] 68 dc
cmsl10.300 sf
[<0FFFFC0000F8070000F0038000F003C000F001C000F001E000F001E001E001C001E003
C001E003C001E0078001E00F0001E03C0003FFF80003C01E0003C00F0003C0078003C007
8003C007800780078007800780078007800780078007800F0007801E000F003C000F0078
00FFFFE000>
32 28 -2 27 29] 66 dc
[<0007F010001C0C300070026000C001E0038000E0070000E00E0000600E0000601C0000
403C00004038000040780000007800000078000000F0000000F0000000F0000000F000FF
F0F0000F80F0000780F0000F0070000F0070000F0038000F0038000F001C001F000C001E
000600660003818200007E0000>
32 30 -4 28 33] 71 dc
[<0FF807FE00F800F000FC006000BC004000BE0040009E0040009E0040010F0080010F00
8001078080010780800103C0800103C0800201E1000201E1000200F1000200F1000200F9
000200790004007E0004003E0004003E0004001E0004001E0004000E000C000C001E0004
00FF800400>
32 28 -2 27 31] 78 dc
[<FFF0FFE0FF801F001F003C000F001F0018000F000F0010000F001F0010000F001F0020
000F002F0020000F002F0060000F804F00400007804F8040000780878080000780878080
0007810781000007810781000007820782000007C20782000003C407C4000003C403C400
0003C803C8000003C803C8000003D803D0000003D003D0000003F003E0000001E003E000
0001E001C0000001C001C0000001C001800000018001800000018001800000>
48 29 -5 27 43] 87 dc
cmtt10.300 sf
[<E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0E0>
8 32 -9 28 22] 124 dc
15 @bop1
cmbx10.300 sf
537 1499(Z)s
cmsy10.300 sf
824 328(\021)s
62 378(f)s
83 1274(g)s
578 1499(\021)s
62 1548(f)s
83 1847(g)s
cmti10.300 sf
506 2022(at)s
15(most)h
0 2607(Basic)s
18(semantics:)h
0 2657(normal)s
16(c)h
-2(o)h
-2(de)h
cmbx10.432 sf
0 42(3.4)s
24(Exception)h
22(Blo)h
2(c)h
-2(k)h
22(Construct)h
0 2246(3.5)s
24(De\014niti)h
-1(on)h
22(of)h
23(Sem)h
-1(an)h
-2(tic)h
-1(s)h
cmr7.300 sf
0 1324(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(18.)h
0 1897(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
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-1(ed.)h
cmsl10.300 sf
0 328(Macros)s
14(for)h
14(constructing)h
15(exception)h
15(blo)h
1(c)h
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83 527(F)s
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12(of)h
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16(BEGIN)h
584 577(F)s
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12(of)h
14(EX)h
15(F)h
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584 627(F)s
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12(of)h
14(EX)h
15(WHEN\(P)h
15(EX\))h
584 677(F)s
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14(implem)h
-1(en)h
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12(of)h
14(EX)h
15(OTHERS)h
584 726(F)s
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14(implem)h
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12(of)h
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584 776(F)s
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14(implem)h
-1(en)h
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-1(n)h
12(of)h
14(EX)h
15(POP)h
83 926(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(BEGIN)h
584 976(Safe)s
14(implem)h
-1(en)h
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-1(n)h
12(of)h
14(EX)h
15(F)h
-1(OR)h
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584 1025(Safe)s
14(implem)h
-1(en)h
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-1(n)h
12(of)h
14(EX)h
15(WHEN\(P)h
16(EX\))h
584 1075(Safe)s
14(implem)h
-1(en)h
-1(tatio)h
-1(n)h
12(of)h
14(EX)h
15(OTHERS)h
584 1125(Safe)s
14(implem)h
-1(en)h
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-1(n)h
12(of)h
14(EX)h
15(END)h
584 1175(Safe)s
14(implem)h
-1(en)h
-1(tatio)h
-1(n)h
12(of)h
14(EX)h
15(POP)h
0 1499(Syn)s
-1(tax)h
14(of)h
13(exception)h
14(blo)h
1(c)h
-1(k)h
cmtt10.300 sf
83 428(#if)s
21(_EX_FAST)h
83 477(#define)s
20(EX_BEGIN)h
86(\\)h
83 577(#define)s
20(EX_FORGET)h
83 627(#define)s
20(EX_WHEN\(P_EX\))h
83 677(#define)s
20(EX_OTHERS)h
83 726(#define)s
20(EX_END)h
83 776(#define)s
20(EX_POP)h
83 826(#else)s
83 876(#define)s
20(EX_BEGIN)h
86(\\)h
83 976(#define)s
20(EX_FORGET)h
83 1025(#define)s
20(EX_WHEN\(P_EX\))h
83 1075(#define)s
20(EX_OTHERS)h
83 1125(#define)s
20(EX_END)h
83 1175(#define)s
20(EX_POP)h
83 1225(#endif)s
83 1598(compound_stat)s
-1(ement)h
19(=)h
22(other_forms)h
-1(_of_c)h
-1(ompou)h
-1(nd_st)h
-1(atem)h
-1(ent)h
20(|)h
21(exception_bloc)h
-1(k)h
497 1648(|)s
22(EX_POP)h
83 1698(exception_blo)s
-1(ck)h
20(=)h
21("EX_BEGIN")h
20(c_code)h
21("EX_FORGET")h
19({)h
22(handler)h
20(})h
22("EX_END")h
83 1748(handler)s
195(=)h
21("EX_WHEN\(")h
20(expression)h
20("\)")h
21(c_code)h
83 1797(handler)s
195(=)h
21("EX_OTHERS")h
705 1972(EX)s
15(WHEN)h
493(p)h
16(ex)h
15(t)h
210 2096(EX)s
15(POP)h
1399 2607(EX)s
15(BEGIN)h
101(EX)h
15(FORGET)h
cmr10.300 sf
0 129(The)s
12(only)h
10(w)h
-1(a)h
-1(y)h
11(to)h
11(catc)h
-1(h)h
12(one)h
11(or)h
11(more)h
11(exceptions)h
12(is)h
11(to)h
11(declare)h
12(a)h
11(construct)h
13(that)h
12(encloses)h
12(the)h
12(co)h
1(de)h
12(that)h
12(could)h
11(raise)h
0 178(the)s
13(exceptions,)h
14(along)h
12(with)h
12(the)h
13(handler)h
13(co)h
1(de.)h
19(This)h
12(construct)h
15(is)h
12(called)h
13(an)h
12(exception)h
14(blo)h
1(c)h
-1(k)h
12(and)h
13(is)h
12(implem)h
-1(en)h
-1(ted)h
0 228(using)s
14(a)h
13(small)h
12(set)h
15(of)h
13(prepro)h
1(cess)h
1(or)h
15(macros.)h
18(Here)h
15(they)h
14(are:)h
746 328([23])s
732 527([52])s
1275 577([53])s
1361 627([54])s
1270 677([55])s
1186 726([56])s
1183 776([57])s
730 926([46])s
1273 976([47])s
1360 1025([48])s
1268 1075([49])s
1184 1125([50])s
1181 1175([51])s
0 1399(These)s
15(macros)h
13(m)h
-1(ust)h
13(b)h
1(e)h
15(used)h
14(in)h
14(accordance)h
15(with)h
14(the)h
14(follo)h
-1(wing)h
11(syn)h
-1(tax:)h
471 1499([24])s
0 1972(The)s
14(argumen)h
-1(t)h
13(to)h
13(eac)h
-1(h)h
14(instan)h
-1(tiation)h
13(of)h
173(m)h
-1(ust)h
13(b)h
1(e)h
14(an)h
13(rv)h
-2(alue)h
14(of)h
13(t)h
-1(yp)h
1(e)h
133(.)h
18(It)h
13(is)h
14(guaran)h
-1(teed)h
14(that)h
14(this)h
0 2022(argumen)s
-1(t)h
13(will)h
12(b)h
1(e)h
15(ev)h
-2(aluated)h
163(once.)h
0 2096(The)s
14(macro)h
151(should)h
14(b)h
1(e)h
15(in)h
-1(v)h
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13(only)h
13(from)h
12(within)h
13(the)h
15(normal)h
11(co)h
1(de)h
15(of)h
13(an)h
14(exception)h
15(blo)h
1(c)h
-1(k.)h
0 2333(This)s
16(section)h
17(con)h
-1(tains)h
16(a)h
17(detailed)h
16(English)h
16(description)h
17(of)h
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17(seman)h
-1(tics)h
16(of)h
16(the)h
17(exception)h
17(constructs)h
18(pro)h
-1(vided)h
0 2383(b)s
-1(y)h
17(this)h
18(pac)h
-1(k)h
-2(age.)h
29(Normally)h
15(this)h
18(sort)h
18(of)h
17(information)h
15(w)h
-1(ould)h
17(b)h
1(e)h
18(laced)h
18(throughout)h
18(the)h
18(pac)h
-1(k)h
-2(age)h
18(sp)h
1(eci\014cation.)h
0 2433(Ho)s
-1(w)h
-1(ev)h
-1(er,)h
16(in)h
14(this)h
16(pac)h
-1(k)h
-2(age,)h
14(there)h
17(are)h
16(so)h
15(man)h
-1(y)h
13(sp)h
1(ecial)h
16(cases)h
17(that)h
15(it)h
15(w)h
-1(as)h
15(though)h
-1(t)h
15(b)h
1(est)h
16(to)h
16(collect)h
15(all)h
14(the)h
16(tric)h
-1(ky)h
0 2482(stu\013)s
15(in)h
14(one)h
14(place.)h
19(The)h
15(reader)h
16(is)h
14(advised)h
14(to)h
14(study)h
15(this)h
14(section)h
15(thoroughly)h
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13(as)h
14(a)h
14(lac)h
-1(k)h
14(of)h
13(kno)h
-1(wledge)h
14(ab)h
1(out)h
14(the)h
0 2532(precise)s
15(seman)h
-1(tics)h
14(of)h
13(the)h
15(exception)h
14(construct)h
16(can)h
14(b)h
1(e)h
14(v)h
-1(ery)h
15(dangerous.)h
333 2607(When)s
17(con)h
-1(trol)h
18(hits)h
17(an)h
17(exception)h
18(blo)h
1(c)h
-1(k,)h
18(the)h
18(co)h
1(de)h
18(b)h
1(et)h
-1(w)h
-1(een)h
205(and)h
224(\(the)h
220 2657(\))s
16(is)h
16(executed.)h
24(If,)h
15(during)h
16(the)h
16(execution)h
16(of)h
15(the)h
16(normal)h
13(co)h
1(de,)h
17(no)h
15(exceptions)h
17(propagate)h
15(up)h
16(to)h
15(this)h
954 2770(15)s
13 2 578 527 r
13 2 1080 577 r
13 2 1080 627 r
13 2 1272 627 r
13 2 1080 677 r
13 2 1080 726 r
13 2 1080 776 r
13 2 576 926 r
13 2 1078 976 r
13 2 1078 1025 r
13 2 1270 1025 r
13 2 1078 1075 r
13 2 1078 1125 r
13 2 1078 1175 r
14 2 752 1972 r
14 2 1370 1972 r
14 2 1430 1972 r
14 2 257 2096 r
14 2 1446 2607 r
14 2 1716 2607 r
15 @eop
16 @bop0
cmti10.300 sf
[<0000180000001800000038000000380000007800000078000000B8000001B800000138
000002380000023C0000041C0000041C0000081C0000181C0000101C0000201C0000201C
00007FFC0000401C0000801C0001801C0001001C0002001C0002001C0004000E000C000E
001C001E00FF00FFC0>
32 29 -2 28 31] 65 dc
[<FFC0FFC0FFC0>
16 3 -3 9 15] 45 dc
[<03C4062C0C3C181C3838303870387038E070E070E070E070E0E0C0E0C0E061E063C03D
C001C001C0038003800380038007803FF0>
16 26 -5 17 19] 113 dc
[<01FC03FE001C0070003C0060002E0040002E0040002E00400047008000470080004700
80004380800083810000838100008181000081C1000101C2000101C2000100E2000100E2
000200E4000200740002007400020074000400380004003800040038000C0018001C0010
00FF801000>
32 28 -3 27 31] 78 dc
cmr10.300 sf
[<FFF007FC0F8001E00780008007C0018003C0010003E0020001F0020000F0040000F804
0000780800007C1800003C1000001E2000001F2000000F4000000FC00000078000000780
000007800000078000000780000007800000078000000780000007800000078000000780
00007FF800>
32 28 0 27 31] 89 dc
[<08081010202040404040808080808080B0B0F8F878783030>
16 12 -6 28 21] 92 dc
[<6060F0F0F8F8686808080808080810101010202040408080>
16 12 -1 28 21] 34 dc
[<1FFF00F800780078007800780078007800780078007800780078007800780078007800
780078007800787078F878F878F878F0F040E021C01F00>
16 29 -1 27 21] 74 dc
16 @bop1
cmbx10.300 sf
1099 1436(Z)s
751 2557(Z)s
cmsy10.300 sf
1140 1436(\021)s
62 1486(f)s
83 1934(g)s
793 2557(\021)s
62 2607(f)s
cmr7.300 sf
0 1984(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
-1(v)h
-1(ok)h
-1(ed.)h
cmsl10.300 sf
0 1436(Example)s
12(of)h
14(a)h
13(correct)h
16(direct)h
15(exit)h
13(from)h
13(an)h
13(exception)h
15(blo)h
1(c)h
-1(k)h
0 2557(Example)s
12(of)h
14(goto)h
13(in)h
13(exception)h
15(handler)h
cmtt10.300 sf
857 340(main\(\))s
0 515(EX)s
15(FORGET)h
1328 714(setjmp)s
97(longjmp)h
1602 764(auto)s
0 863(EX)s
15(FORGET)h
666 1137(goto)s
687(return)h
146 1187(longjmp)s
315(exit)h
453 1337(EX)s
16(POP)h
83 1536(EX_BEGIN)s
148 1586(add_char\(buffer)s
-1(,'x')h
-1(\);)h
148 1636(if)s
22(\(is_full\(buf)h
-1(fer\))h
-1(\))h
20({EX_POP;)h
20(return)h
21(TRUE;})h
83 1685(EX_FORGET)s
148 1735(EX_WHEN\(buf_ful)s
-1(\))h
214 1785(return)s
20(TRUE;)h
83 1835(EX_END)s
83 1885(return)s
21(FALSE;)h
0 2059(EX)s
15(POP)h
362 2233(return)s
21(TRUE)h
985(EX)h
15(POP)h
421 2283(return)s
21(TRUE)h
83 2657(EX_BEGIN)s
cmti10.300 sf
843 191(hand)s
2(ler)h
15(c)h
-2(o)h
-2(de)h
0 465(State)s
23(of)h
22(the)h
23(function:)h
1385 515(A)s
-1(l)h
2(l)h
18(ac)h
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19(obje)h
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19(have)h
19(val-)h
0 565(ues)s
14(as)h
13(of)h
13(the)h
14(time)h
12(longjmp)h
14(was)h
13(c)h
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2(le)h
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13(exc)h
-2(ept)h
13(that)h
14(the)h
13(values)h
14(of)h
13(obje)h
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13(of)h
13(automatic)h
14(stor)h
-2(age)h
13(dur)h
-2(ation)h
13(that)h
13(ar)h
-2(e)h
0 614(lo)s
-2(c)h
-2(al)h
15(to)h
16(the)h
15(function)h
17(c)h
-2(ontaining)h
16(the)h
16(invo)h
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16(of)h
15(the)h
16(c)h
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16(setjmp)h
15(macr)h
-2(o)h
16(that)h
16(do)h
16(not)h
16(have)h
16(volatile-)h
0 664(quali\014e)s
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685 2557([26])s
954 2770(16)s
14 2 47 515 r
14 2 47 863 r
14 2 500 1337 r
14 2 47 2059 r
14 2 1635 2233 r
16 @eop
17 @bop0
cmti10.300 sf
[<01FFE0003C0000380000380000380000380000700000700000700000700000E00000E0
0000E00000E00001C00001C00001C00001C0000380080380080380080380100700100700
300700600700E00E03C0FFFFC0>
24 28 -3 27 26] 76 dc
[<0007F000001C1C0000700E0000E0070001C0038003800380070003800E0003C01E0003
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001C0380000E0E000003F80000>
32 30 -6 28 32] 79 dc
[<01FFCFFE003C01E0003801C0003801C0003801C0003801C00070038000700380007003
800070038000E0070000E0070000E0070000FFFF0001C00E0001C00E0001C00E0001C00E
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00FFE7FF00>
32 28 -3 27 31] 72 dc
cmtt10.300 sf
[<007C0000FC0000DC0001DC00039C00039C00071C000F1C000E1C001E1C003C1C00381C
00781C00F01C00FFFFE0FFFFE0FFFFE0001C00001C00001C00001C00001C0001FFC001FF
C001FFC0>
24 25 -1 24 22] 52 dc
17 @bop1
cmbx10.300 sf
946 982(Z)s
755 1900(Z)s
cmsy10.300 sf
83 589(g)s
987 982(\021)s
62 1032(f)s
83 1630(g)s
797 1900(\021)s
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cmti10.300 sf
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0 1900(Example)s
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14(nested)h
15(exception)h
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cmr10.300 sf
0 712(Because)s
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689 1900([28])s
357 2670(The)s
218(handler)h
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954 2770(17)s
cmtt10.300 sf
148 42(add_char\(buffer)s
-1(,'x')h
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83 91(EX_FORGET)s
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148 1232(if)s
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148 1331(EX_WHEN\(buf_ful)s
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214 1381(string)s
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214 1431(printf\(walru)s
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214 1481(return)s
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83 1530(EX_END)s
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83 1999(EX_BEGIN)s
148 2049(add_char\(buffer)s
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148 2099(EX_BEGIN)s
214 2149(big_func\(\);)s
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279 2248(EX_WHEN\(buf_f)s
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20(printf\("big)h
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148 2298(EX_END)s
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148 2398(EX_WHEN\(buf_ful)s
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20(printf\("add_)h
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148 2448(EX_WHEN\(sloth\))s
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21(sloth.\\n"\);)h
83 2497(EX_END)s
442 2670(EX)s
15(OTHERS)h
14 2 489 2670 r
17 @eop
18 @bop0
cmbx10.432 sf
[<380000003E0000003FFFFFF03FFFFFF03FFFFFF07FFFFFE07FFFFFC07FFFFFC07FFFFF
8070000F0070001E0070003C00E0003800E0007800E000F0000001E0000003C0000003C0
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00007E0000007E0000007E0000007E000000FE000000FE000000FE000000FE000000FE00
0000FE000000FE000000FE000000FE000000380000>
32 41 -4 40 34] 55 dc
[<FFFFFFFFC0FFFFFFFFC0FFFFFFFFC003FC003FC003FC000FE003FC0003E003FC0001E0
03FC0001E003FC0000E003FC0000E003FC0000E003FC0000F003FC03807003FC03807003
FC03807003FC03800003FC07800003FC07800003FC1F800003FFFF800003FFFF800003FF
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800003FC00000003FC00000003FC00000003FC00000003FC00000003FC00000003FC0000
0003FC00000003FC000000FFFFFC0000FFFFFC0000FFFFFC0000>
40 41 -3 40 43] 70 dc
18 @bop1
cmbx10.300 sf
528 1034(Z)s
cmsy10.300 sf
569 1034(\021)s
62 1084(f)s
83 1732(g)s
450 2573(\021)s
62 2622(f)s
743(g)h
cmsl10.300 sf
0 1034(Example)s
12(of)h
14(use)h
14(of)h
14(EX)h
15(ID)h
0 2573(F)s
-3(unction)h
14(sp)h
1(ec)h
15(ex)h
15(str)h
cmbx10.432 sf
0 294(3.6)s
24(Exception)h
22(Informati)h
-1(on)h
0 2301(3.7)s
24(F)h
-6(unction)h
23(ex)h
24(str)h
cmti10.300 sf
0 42(Hand)s
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17(pr)h
-2(e)h
-2(c)h
-2(e)h
-2(denc)h
-2(e:)h
0 162(R)s
-2(e-r)h
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14(an)h
16(exc)h
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cmr7.300 sf
0 1779(This)s
12(macro)h
10(is)h
12(NEVER)h
11(in)h
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0 2670(This)s
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12(in)h
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13(in)h
11(de\014nition)h
13(18.)h
cmtt10.300 sf
1410 162(EX)s
16(RAISE\(EX)h
14(ID\);)h
1847 424(EX)s
15(ID)h
958 474(p)s
16(ex)h
15(t)h
188(EX)h
15(INFO)h
543 524(ptrint)s
373(style.h)h
622 644(EX)s
16(ID)h
1217 794(EX)s
15(ID)h
1132 943(goto)s
83 1134(EX_BEGIN)s
148 1184(add_char\(buffer)s
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83 1233(EX_FORGET)s
148 1283(EX_WHEN\(misc_1\))s
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148 1333(EX_WHEN\(misc_2\))s
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148 1383(EX_WHEN\(misc_3\))s
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148 1433(EX_WHEN\(misc_4\))s
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148 1482(EX_WHEN\(misc_5\))s
192 1532(doit:)s
257 1582(printf\("Miscel)s
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20(exception)h
20(happened.\\n)h
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257 1632(EX_RAISE\(EX_ID)s
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83 1682(EX_END)s
0 1850(EX)s
15(ID)h
245 1970(EX)s
15(INFO)h
1731 2069(EX)s
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208 2119(ptrint)s
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15(str)h
1782 2432(EX)s
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51 2482(EX)s
15(EXPORT)h
83 2622(EXPORT)s
21(string)h
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21(P_\(\(p_ex_t\))h
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cmr10.300 sf
385 42(The)s
16(\014rst)h
17(handler)h
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16(matc)h
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15(exception)h
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456 162(T)s
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371 2573([30])s
954 2770(18)s
14 2 1457 162 r
14 2 1648 162 r
14 2 1894 424 r
14 2 983 474 r
14 2 1043 474 r
14 2 1312 474 r
14 2 669 644 r
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14 2 1778 2069 r
21 2 469 2301 r
14 2 291 2382 r
14 2 1829 2432 r
14 2 98 2482 r
13 2 307 2573 r
18 @eop
19 @bop0
cmbx10.432 sf
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32 39 -3 38 34] 56 dc
19 @bop1
cmbx10.432 sf
0 42(3.8)s
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23(W)h
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23(Ab)h
2(out)h
24(Nam)h
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0 477(3.9)s
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cmtt10.300 sf
552 278(ex)s
311 328(ex)s
0 565(Abstract)s
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0 639(Catch)s
0 764(Client)s
0 839(Exception)s
0 913(Exception)s
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0 1536(Raise)s
618(EX)h
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cmr10.300 sf
0 129(This)s
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14(to)h
13(that)h
14(lev)h
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255 1411(|)s
15(The)h
16(termination)h
14(of)h
15(an)h
15(exception)h
16(blo)h
1(c)h
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15(in)h
15(a)h
16(w)h
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14(that)h
16(b)h
-1(ypasses)h
17(the)h
16(exception)h
16(pac)h
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-2(age)h
15(\(for)h
0 1461(example,)s
12(b)h
-1(y)h
158(or)h
14(explicit)h
168(\).)h
16(The)h
15(macro)h
151(should)h
13(b)h
1(e)h
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125 1536(|)s
16(An)h
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16(an)h
200(statemen)h
-1(t.)h
25(Once)h
17(raised,)h
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-1(winds)h
16(the)h
17(stac)h
-1(k)h
0 1586(un)s
-1(til)h
13(it)h
14(encoun)h
-1(ters)h
15(a)h
14(handler)h
14(for)h
13(the)h
15(sp)h
1(eci\014c)h
15(exception.)h
954 2770(19)s
14 2 599 278 r
14 2 298 328 r
14 2 1029 1461 r
14 2 775 1536 r
19 @eop
20 @bop0
cmbx10.518 sf
[<0000007800000000F800000001F800000003F800000007F800000007F80000000FF800
00001FF80000003FF80000007FF800000077F8000000F7F8000001E7F8000003C7F80000
0787F800000707F800000F07F800001E07F800003C07F800007807F800007007F80000F0
07F80001E007F80003C007F800078007F8000F0007F8000F0007F8001E0007F8003C0007
F800780007F800F00007F800FFFFFFFFF0FFFFFFFFF0FFFFFFFFF000000FF80000000FF8
0000000FF80000000FF80000000FF80000000FF80000000FF80000000FF80000000FF800
000FFFFFF0000FFFFFF0000FFFFFF0>
40 46 -2 45 41] 52 dc
[<FFFFFFC0FFFFFFC0FFFFFFC000FFC00000FFC00000FFC00000FFC00000FFC00000FFC0
0000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC0
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0000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC0
0000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC00000FFC0
0000FFC000FFFFFFC0FFFFFFC0FFFFFFC0>
32 49 -2 48 31] 73 dc
[<01F800FFF800FFF800FFF8000FF80007F80007F80007F80007F80007F80007F80007F8
0007F80007F80007F80007F80007F80007F80007F80007F80007F80007F80007F80007F8
0007F80007F80007F80007F80007F80007F80007F80007F80007F80007F80007F80007F8
0007F80007F80007F80007F80007F80007F80007F80007F80007F80007F80007F800FFFF
C0FFFFC0FFFFC0>
24 50 -3 49 23] 108 dc
cmbx10.432 sf
[<0000FFE000000007FFFC0000003FC07F8000007F001FC00001FC0007F00003F80003F8
0007F00001FC000FF00001FE001FE00000FF001FE00000FF003FC000007F803FC000007F
807FC000007FC07F8000003FC07F8000003FC07F8000003FC0FF8000003FE0FF8000003F
E0FF8000003FE0FF8000003FE0FF8000003FE0FF8000003FE0FF8000003FE0FF8000003F
E0FF8000003FE0FF8000003FE07F8000003FC07FC000007FC07FC000007FC03FC000007F
803FC000007F801FE00000FF001FE00000FF000FF00001FE0007F00001FC0003F80003F8
0001FC0007F00000FF001FE000003FC07F8000000FFFFE00000000FFE00000>
48 41 -4 40 52] 79 dc
cmsl10.300 sf
[<7070F060>
8 4 -4 3 12] 46 dc
20 @bop1
cmsy10.300 sf
434 511(\021)s
62 560(f)s
83 1009(g)s
411 1233(\021)s
62 1283(f)s
83 1582(g)s
481 1731(\021)s
62 1781(f)s
83 1930(g)s
cmbx10.518 sf
0 50(4)s
28(Imple)h
-1(m)h
-2(en)h
-3(tation)h
cmbx10.432 sf
0 2130(4.1)s
24(Ov)h
-2(erview)h
21(and)h
24(Data)h
23(Structure)h
23(Descripti)h
-1(on)h
cmtt10.300 sf
346 237(.h)s
392 361(.c)s
83 660(#include)s
20("except.h")h
83 710(#include)s
20("as.h")h
1201 1133(.h)s
514 2341(EX)s
15(BEGIN)h
82(setjmp)h
575(jmp)h
15(buf)h
1620 2391(EX)s
15(END)h
34 2491(longjmp)s
1119 2540(longjmp)s
cmr7.300 sf
0 1059(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(2.)h
0 1631(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(18.)h
0 1980(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(18.)h
cmsl10.300 sf
0 511(Implem)s
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12(\014le)h
83 610(Con\014guration)s
13(header)h
15(notice)h
83 760(Global)s
12(v)h
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13(\(.c\))h
83 809(F)s
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14(ex)h
15(str)h
83 859(F)s
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14(ex)h
15(b)h
1(om)h
-1(b)h
83 909(F)s
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29(exrai)h
83 959(F)s
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29(exp)h
1(op)h
0 1233(Hidden)s
14(de\014nitions)h
83 1333(Sym)s
-1(b)h
1(ol)h
27(EX)h
15(F)h
-5(AST)h
83 1382(Sym)s
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1(ol)h
27(EX)h
15(THRD)h
83 1432(Exception)s
14(blo)h
1(c)h
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14(con)h
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15(t)h
-1(yp)h
1(e)h
83 1482(Global)s
12(v)h
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13(\(.h\))h
83 1532(Macros)s
15(for)h
13(global)h
12(v)h
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0 1731(Hidden)s
14(function)h
14(sp)h
1(ecs)h
83 1831(F)s
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14(sp)h
1(ec)h
30(exrai)h
83 1880(F)s
-3(unction)h
14(sp)h
1(ec)h
30(exp)h
1(op)h
cmr10.300 sf
0 137(This)s
12(section)h
14(describ)h
1(es)h
14(the)h
14(impl)h
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11(of)h
12(this)h
12(pac)h
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17(The)h
13(implem)h
-1(en)h
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10(is)h
13(short,)h
13(but)h
12(is)h
13(rather)h
13(messy)h
0 187(b)s
1(ecause)h
17(of)h
14(the)h
15(fast/safe)h
15(alternativ)h
-1(es,)h
15(and)h
14(b)h
1(ecause)h
17(of)h
14(the)h
15(fact)h
15(that)h
15(m)h
-1(uc)h
-1(h)h
14(of)h
14(the)h
15(functionalit)h
-1(y)h
14(of)h
14(the)h
15(pac)h
-1(k)h
-2(age)h
0 237(is)s
17(pro)h
-1(vided)h
17(in)h
17(the)h
79(\014le.)h
28(Muc)h
-1(h)h
17(of)h
17(that)h
17(functionalit)h
-1(y)h
16(has)h
17(b)h
1(een)h
19(deferred)h
19(using)h
17(F)h
-3(unnelW)h
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16(macros)h
17(to)h
17(this)h
0 286(section.)s
0 361(The)s
11(implem)h
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9(\()h
44(\))h
11(\014le)h
11(itself)h
11(is)h
11(fairly)h
9(simply)h
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9(consisting)h
11(only)h
10(of)h
11(some)h
10(global)h
9(v)h
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10(and)h
11(a)h
11(few)h
11(function)h
0 411(de\014nitions.)s
355 511([31])s
590 610([4])s
452 760([35])s
363 809([58])s
416 859([67)s
-1(])h
363 909([60])s
381 959([69])s
0 1133(All)s
13(the)h
15(real)h
13(action)h
14(happ)h
1(ens)h
15(in)h
13(the)h
15(de\014nitions)h
13(in)h
14(the)h
14(sp)h
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15(\()h
44(\))h
14(\014le)h
14(that)h
14(are)h
14(hidden)h
14(from)h
12(the)h
15(clien)h
-1(t.)h
333 1233([32])s
430 1333([15])s
447 1382([16])s
617 1432([34])s
457 1482([36])s
574 1532([17])s
401 1731([33])s
454 1831([59])s
472 1880([68])s
0 2217(This)s
14(section)h
14(giv)h
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14(an)h
14(o)h
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14(of)h
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14(implem)h
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12(of)h
13(this)h
14(pac)h
-1(k)h
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0 2291(This)s
15(pac)h
-1(k)h
-2(age)h
16(op)h
1(erates)h
16(b)h
-1(y)h
16(main)h
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13(an)h
15(explicit)h
15(stac)h
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16(of)h
15(curren)h
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17(activ)h
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15(exception)h
17(blo)h
1(c)h
-1(ks.)h
23(Whenev)h
-1(er)h
16(an)h
0 2341(exception)s
18(blo)h
1(c)h
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17(is)h
18(en)h
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19(\()h
169(\),)h
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166(is)h
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19(and)h
18(the)h
18(resultan)h
-1(t)h
181(is)h
18(inserted)h
19(in)h
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16(a)h
0 2391(stac)s
-1(k)h
14(no)h
1(de)h
15(and)h
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14(on)h
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14(the)h
14(stac)h
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19(Whenev)h
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15(an)h
14(exception)h
15(blo)h
1(c)h
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13(is)h
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14(normally)h
12(\()h
125(\),)h
13(the)h
15(stac)h
-1(k)h
0 2441(no)s
1(de)h
14(on)h
13(the)h
14(top)h
14(of)h
13(the)h
14(stac)h
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14(is)h
13(p)h
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1(ed.)h
19(When)h
14(an)h
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14(raised,)h
13(the)h
14(top)h
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13(the)h
14(stac)h
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14(is)h
13(p)h
1(opp)h
1(ed)h
15(o\013)h
13(and)h
0 2491(a)s
179(is)h
14(executed)h
15(to)h
14(its)h
14(con)h
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18(The)h
14(con)h
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15(then)h
14(searc)h
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16(its)h
13(handlers)h
14(for)h
14(a)h
13(handler)h
14(for)h
13(the)h
14(exception)h
0 2540(raised.)s
18(If)h
13(it)h
12(\014nds)h
14(one,)h
13(it)h
12(executes)h
15(it.)h
18(If)h
12(it)h
13(do)h
1(esn't,)h
13(it)h
12(p)h
1(ops)h
14(and)h
167(s)h
11(the)h
14(top)h
13(of)h
12(stac)h
-1(k)h
13(again.)h
17(This)h
13(go)h
1(es)h
13(on)h
0 2590(un)s
-1(til)h
13(the)h
15(exception)h
14(is)h
14(caugh)h
-1(t,)h
13(or)h
14(the)h
15(stac)h
-1(k)h
14(is)h
14(empt)h
-1(y)h
-3(.)h
0 2665(The)s
14(stac)h
-1(k)h
15(is)h
13(comp)h
1(osed)h
14(of)h
13(a)h
14(singly-link)h
-1(ed)h
12(list)h
13(of)h
14(records)h
15(of)h
13(the)h
15(follo)h
-1(wi)h
-1(ng)h
12(t)h
-1(yp)h
1(e:)h
954 2770(20)s
13 2 299 809 r
13 2 299 859 r
13 2 259 909 r
13 2 259 959 r
13 2 234 1333 r
13 2 308 1333 r
13 2 234 1382 r
13 2 308 1382 r
13 2 350 1831 r
13 2 350 1880 r
14 2 561 2341 r
14 2 1541 2341 r
14 2 1667 2391 r
20 @eop
21 @bop0
/cmr10.432 127 @newfont
cmr10.432 sf
[<00006000000060000000E0000001E0000001E0000003E0000003E0000005E0000009E0
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32 40 -2 39 30] 52 dc
[<78FCFCFCFC78>
8 6 -5 5 17] 46 dc
[<00100000700001F0000FF000FEF000F0F00000F00000F00000F00000F00000F00000F0
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24 40 -5 39 30] 49 dc
[<0000FF00100007FFE030001FC07830003E000C7000F80006F001F00003F003E00001F0
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40 43 -3 41 47] 71 dc
[<0780FF80FF800F80078007800780078007800780078007800780078007800780078007
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16 42 -1 41 17] 108 dc
[<007F000001C1C000070070000E0038001C001C003C001E003C001E0078000F0078000F
00F8000F80F8000F80F8000F80F8000F80F8000F80F8000F80F8000F80F8000F8078000F
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32 26 -2 25 30] 111 dc
[<07800000FF800000FF8000000F80000007800000078000000780000007800000078000
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32 42 -1 41 33] 98 dc
[<01FC00000E0780001001C0003C00E0003E00F0003E0078001C00780008007800000078
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32 26 -2 25 30] 97 dc
[<FFFF0003FFC0FFFF0003FFC007F000007E0003E00000380003E00000100001F0000020
0001F00000200001F00000200000F80000400000F80000400000FC0000C000007C000080
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00>
48 42 -1 40 45] 86 dc
[<0787C0FF98E0FF91F00FA1F007C1F007C0E007C0000780000780000780000780000780
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24 26 -1 25 23] 114 dc
[<07000F801F801F800F80070000000000000000000000000000000000000007807F807F
800F80078007800780078007800780078007800780078007800780078007800780078007
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16 41 -1 40 17] 105 dc
[<007E0003C3800700E00E00F01C00703C00783C003878003C78003CF8003CF8003CFFFF
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24 26 -2 25 27] 101 dc
[<07F8401C06C03001C06000C06000C0E00040E00040F00040F800007E00007FF0003FFE
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24 26 -2 25 24] 115 dc
21 @bop1
cmsy10.300 sf
613 42(\021)s
62 91(f)s
83 540(g)s
447 1523(\021)s
62 1573(f)s
83 1872(g)s
452 2096(\021)s
62 2146(f)s
83 2445(g)s
cmr10.432 sf
0 1063(4.1.1)s
19(Global)h
19(V)h
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cmr7.300 sf
0 589(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(32.)h
0 1922(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(31.)h
0 2495(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(32.)h
cmsl10.300 sf
0 42(Exception)s
14(blo)h
1(c)h
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14(con)h
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15(t)h
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1(e)h
83 241(Header)s
15(magic)h
12(n)h
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1(er)h
13(\014eld)h
83 390(T)s
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13(magic)h
12(n)h
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1(er)h
13(\014eld)h
83 490(Magic)s
13(n)h
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1(er)h
14(sym)h
-1(b)h
1(ols)h
0 1523(Global)s
12(v)h
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13(\(.c\))h
0 2096(Global)s
12(v)h
-2(ariables)h
13(\(.h\))h
cmtt10.300 sf
83 141(typedef)s
20(struct)h
21(_ex_cxt_)h
127 191({)s
148 291(jmp_buf)s
217(_ex_jmbf;)h
42(/*)h
21(Exception)h
20(block)h
21(context.)h
216(*/)h
148 340(struct)s
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42(/*)h
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127 440(})s
21(_ex_cx_t;)h
599 714(EX)s
15(BEGIN)h
307 764(ex)s
15(cx)h
16(t)h
549 814(ex)s
16(curr)h
952(NULL)h
837 863(ex)s
16(id)h
111(ex)h
15(info)h
1562 1150(ex)s
15(curr)h
759 1200(NULL)s
662(ex)h
15(id)h
960 1249(ex)s
15(info)h
999 1424(EX)s
15(CURR)h
25(EX)h
15(ID)h
41(EX)h
15(ID)h
25(EX)h
15(INFO)h
83 1623(#if)s
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83 1673(GLOVAR)s
21(_ex_cx_t)h
20(*_ex_curr)h
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21(NULL;)h
83 1723(GLOVAR)s
21(p_ex_t)h
86(_ex_id;)h
83 1773(GLOVAR)s
21(ptrint)h
86(_ex_info;)h
83 1822(#endif)s
83 2196(#if)s
21(!_EX_THRD)h
83 2246(extern)s
21(_ex_cx_t)h
20(*_ex_curr;)h
83 2296(extern)s
21(p_ex_t)h
86(_ex_id;)h
83 2345(extern)s
21(ptrint)h
86(_ex_info;)h
83 2395(#endif)s
cmr10.300 sf
534 42([34])s
574 241([37])s
567 390([38])s
506 490([)s
-1(39])h
0 664(The)s
13(sneaky)h
13(part)h
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0 714(itself.)s
17(This)h
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11(ha)h
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0 764(v)s
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180(whic)h
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18(These)h
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0 814(ro)s
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13(or)h
114(if)h
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0 863(is)s
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19(Tw)h
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147(and)h
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185(p)h
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0 1249(to)s
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18(The)h
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189(is)h
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-1(vided)h
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15(use)h
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0 1324(T)s
-3(o)h
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13(date,)h
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17(global)h
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21(The)h
15(macros)h
15(are)h
15(describ)h
1(ed)h
17(in)h
15(the)h
16(static)h
0 1424(parameters)s
14(section)h
15(of)h
13(this)h
14(do)h
1(cumen)h
-1(t.)h
17(They)h
15(are)h
14(called)h
176(,)h
116(,)h
132(,)h
160(.)h
369 1523([35])s
0 1997(Here)s
15(is)h
14(the)h
14(v)h
-1(ersion)h
14(of)h
14(these)h
15(v)h
-2(ariables)h
13(that)h
14(app)h
1(ears)h
15(in)h
13(the)h
15(header)h
15(\014le.)h
374 2096([36])s
954 2770(21)s
14 2 646 714 r
14 2 294 764 r
14 2 354 764 r
14 2 413 764 r
14 2 536 814 r
14 2 596 814 r
14 2 824 863 r
14 2 884 863 r
14 2 1039 863 r
14 2 1099 863 r
14 2 1548 1150 r
14 2 1609 1150 r
14 2 1496 1200 r
14 2 1556 1200 r
14 2 947 1249 r
14 2 1007 1249 r
14 2 986 1424 r
14 2 1046 1424 r
14 2 1218 1424 r
14 2 1302 1424 r
14 2 1362 1424 r
14 2 1490 1424 r
21 @eop
22 @bop0
cmr10.432 sf
[<00FE0007FF800E07E01803F02001F82000F840007C40007CF8007EFC007EFC003EFC00
3EFC003E78007E00007E00007C00007C0000F80000F80001F00001E00003C00007800007
00000E00001C0000380000700000600000C0000180020300020600040C00041800041000
0C3FFFFC7FFFF8FFFFF8FFFFF8>
24 40 -3 39 30] 50 dc
[<FFE0000003FFC0FFE0000003FFC007E0000003F80002F0000005F00002F0000005F000
0278000009F0000278000009F0000278000009F000023C000011F000023C000011F00002
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0201F0000201E00201F0000201E00201F0000200F00401F0000200F00401F0000200F004
01F0000200780801F0000200780801F00002003C1001F00002003C1001F00002003C1001
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000200078001F0000700078001F0000F80030003F800FFF803007FFFC0FFF803007FFFC0>
56 41 -2 40 55] 77 dc
[<0000078001FC1840070721C00E03C1C01E03C0803C01E0003C01E0007C01F0007C01F0
007C01F0007C01F0007C01F0003C01E0003C01E0001E03C0000E0380001707000011FC00
00300000003000000030000000380000001C0000001FFFC0000FFFF80007FFFC001C003E
0030000F007000070060000380E0000380E0000380E0000380E000038070000700700007
0038000E000C0018000780F00000FF8000>
32 40 -2 26 30] 103 dc
[<007F8001C0700780080F003C1E007C3C007C3C00387C0010780000F80000F80000F800
00F80000F80000F80000F80000F800007800007C00003C00043C00041E00080F00100780
2001C0C0007F00>
24 26 -2 25 27] 99 dc
[<FFE0001FFFFFF0001FFF03F80001F002F80000E0027C000040027E000040023E000040
021F000040021F800040020F8000400207C000400207E000400203E000400201F0004002
01F800400200F8004002007C004002007E004002003E004002001F004002001F80400200
0F8040020007C040020003E040020003E040020001F040020000F840020000F840020000
7C400200003E400200003E400200001F400200000FC00200000FC002000007C002000003
C002000003C007000001C00F800000C0FFF80000C0FFF8000040>
40 41 -2 40 45] 78 dc
[<07800780FF80FF80FF80FF800F800F8007800780078007800780078007800780078007
800780078007800780078007800780078007800780078007800780078007800780078007
80078007800780078007800F8007800F800380178001C027C000E047FC003F87FC>
32 26 -1 25 33] 117 dc
[<0781F800FC00FF860E030700FF98070C03800FA0079003C007A003D001E007C003E001
E007C003E001E0078003C001E0078003C001E0078003C001E0078003C001E0078003C001
E0078003C001E0078003C001E0078003C001E0078003C001E0078003C001E0078003C001
E0078003C001E0078003C001E0078003C001E0078003C001E0078003C001E0078003C001
E0FFFC7FFE3FFFFFFC7FFE3FFF>
48 26 -1 25 51] 109 dc
cmr7.300 sf
[<0F0030C0606060604020C030C030C030C030C030C030C030C030C03040206060606030
C00F00>
16 19 -2 18 17] 48 dc
cmtt10.300 sf
[<07F0001FFC003FFE007C1F00F00780E00380E00380E003807007007C1F001FFC0007F0
001FFC003C1E00700700F00780E00380E00380E00380F007807007007C1F003FFE001FFC
0007F000>
24 25 -2 24 22] 56 dc
[<E00000FFFF80FFFF80FFFF80E00F00E01E00001C0000380000780000700000E00000E0
0001C00001C00001C0000380000380000380000380000700000700000700000700000700
00070000070000>
24 26 -2 25 22] 55 dc
22 @bop1
cmr10.432 sf
0 42(4.1.2)s
19(Magic)h
18(Num)h
-2(b)h
2(ers)h
cmsy10.300 sf
569 425(\021)s
62 475(f)s
215 574(g)s
562 722(\021)s
62 771(f)s
215 871(g)s
499 1019(\021)s
62 1068(f)s
673 1168(g)s
296 1647(\021)s
62 1697(f)s
481(g)h
678 2176(\021)s
62 2226(f)s
524(g)h
680 2374(\021)s
62 2423(f)s
676(g)h
645 2571(\021)s
62 2621(f)s
676(g)h
cmbx10.432 sf
0 1364(4.2)s
24(Exception)h
22(t)h
-2(yp)h
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0 1893(4.3)s
24(Macros)h
24(for)h
23(Declaring)h
21(and)h
24(De\014ning)h
22(Exceptions)h
cmsl10.300 sf
0 425(Header)s
15(magic)h
12(n)h
-1(um)h
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1(er)h
13(\014eld)h
0 722(T)s
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13(magic)h
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13(\014eld)h
0 1019(Magic)s
13(n)h
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14(sym)h
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0 1647(T)s
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14(p)h
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0 2176(Implem)s
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15(EX)h
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0 2374(Implem)s
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15(EXPOR)h
-3(T)h
0 2571(Implem)s
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12(of)h
13(EX)h
15(LOCAL)h
cmr7.300 sf
0 624(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(34.)h
0 920(This)s
12(macro)h
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12(in)h
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13(in)h
11(de\014nition)h
13(34.)h
0 1217(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
11(de\014nition)h
13(34.)h
0 1746(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(20.)h
0 2276(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(20.)h
0 2473(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
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13(in)h
11(de\014nition)h
13(20.)h
0 2670(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(20.)h
cmtt10.300 sf
83 475(#if)s
21(!_EX_FAST)h
148 524(ulong)s
21(_ex_mag1;)h
42(/*)h
21(Header)h
21(magic)h
21(number.)h
20(*/)h
83 574(#endif)s
83 771(#if)s
21(!_EX_FAST)h
148 821(ulong)s
21(_ex_mag2;)h
42(/*)h
21(Trailer)h
21(magic)h
20(number.)h
21(*/)h
83 871(#endif)s
83 1118(#define)s
20(_EX_MAG1)h
21(0xFB8A5D30)h
83 1168(#define)s
20(_EX_MAG2)h
21(0x09F2E7A2)h
1012 1549(string)s
83 1697(typedef)s
20(string)h
21(p_ex_t;)h
1177 1979(p)s
15(ex)h
16(t)h
83 2226(extern)s
21(const)h
20(p_ex_t)h
21(NAME)h
236 2423(const)s
20(p_ex_t)h
21(NAME)h
21(=)h
21(DESC)h
83 2621(static)s
21(const)h
20(p_ex_t)h
21(NAME)h
21(=)h
21(DESC)h
cmr10.300 sf
0 127(In)s
12(order)h
13(to)h
12(detect)h
14(corruptions)h
13(in)h
11(exception)h
13(con)h
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11(magic)h
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11(\014elds)h
13(ha)h
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12(b)h
1(een)h
13(placed)h
12(at)h
12(the)h
0 177(start)s
15(and)h
13(end)h
15(of)h
13(the)h
14(record.)h
20(In)h
14(C,)h
13(there)h
15(are)h
14(h)h
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16(of)h
13(w)h
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13(for)h
14(corruptions)h
14(to)h
14(o)h
1(ccur,)h
15(but)h
14(in)h
13(particular,)h
13(in)h
0 227(this)s
13(pac)h
-1(k)h
-2(age,)h
12(if)h
12(a)h
13(clien)h
-1(t)h
13(exits)h
13(an)h
13(exception)h
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14(without)h
12(\014rst)h
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12(it,)h
13(it)h
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13(quite)h
13(lik)h
-1(ely)h
12(that)h
13(the)h
13(con)h
-1(text)h
0 277(will)s
12(b)h
1(e)h
14(\\run)h
14(o)h
-1(v)h
-1(er")h
13(b)h
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13(stac)h
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14(frames)h
13(of)h
13(functions)h
13(called)h
13(later.)h
18(If)h
13(the)h
15(con)h
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14(is)h
13(then)h
14(in)h
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-1(ok)h
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12(the)h
15(program)h
11(will)h
0 327(crash.)s
19(The)h
14(follo)h
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11(magic)h
12(n)h
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14(\014elds)h
14(greatly)h
14(impro)h
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13(the)h
14(c)h
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15(of)h
14(detecting)h
15(suc)h
-1(h)h
14(corruptions.)h
491 425([37])s
484 722([38])s
423 1019([)s
-1(39])h
0 1450(Here)s
14(is)h
12(the)h
13(de\014nition)h
12(of)h
12(the)h
13(p)h
1(oin)h
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18(Normall)h
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10(a)h
12(hidden)h
12(exception)h
14(t)h
-1(yp)h
1(e)h
12(w)h
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12(b)h
1(e)h
13(declared)h
0 1499(to)s
11(whic)h
-1(h)h
11(the)h
11(p)h
1(oin)h
-1(ter)h
11(t)h
-1(yp)h
1(e)h
12(w)h
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10(p)h
1(oin)h
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10(but)h
12(as)h
11(exceptions)h
12(ha)h
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-1(e)h
10(only)h
11(a)h
10(single)h
11(attribute,)h
11(their)h
12(description)h
11(string,)h
0 1549(it)s
14(mak)h
-1(es)h
12(sense)h
16(simply)h
12(to)h
13(declare)h
15(the)h
15(p)h
1(oin)h
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14(t)h
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1(e)h
14(to)h
14(b)h
1(e)h
159(t)h
-1(yp)h
1(e)h
14(\(p)h
1(oin)h
-1(ter)h
15(to)h
13(c)h
-1(har\).)h
218 1647([40])s
0 1979(The)s
12(three)h
13(exception)h
12(declaration)h
11(macros)h
11(mak)h
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10(use)h
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12(fact)h
11(that)h
142(is)h
11(really)h
11(just)h
12(a)h
11(string)h
11(p)h
1(oin)h
-1(ter.)h
18(There)h
0 2028(is)s
14(a)h
14(sligh)h
-1(t)h
13(danger)h
14(that)h
14(a)h
14(to)h
1(o-clev)h
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14(C)h
14(compiler)h
13(migh)h
-1(t)h
12(o)h
-1(v)h
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13(t)h
-1(w)h
-1(o)h
14(strings)h
14(for)h
14(whic)h
-1(h)h
14(one)h
14(is)h
14(a)h
13(non-strict)h
15(su\016x)h
0 2078(of)s
13(the)h
15(other.)h
18(Ho)h
-1(w)h
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-1(er,)h
14(this)h
14(is)h
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15(unlik)h
-1(ely)h
-3(.)h
598 2176([41])s
601 2374([42])s
566 2571([43])s
954 2770(22)s
13 2 132 1647 r
13 2 187 1647 r
14 2 1202 1979 r
14 2 1261 1979 r
13 2 408 2176 r
13 2 408 2374 r
13 2 408 2571 r
22 @eop
23 @bop0
cmbx10.432 sf
[<00030007001E003C007800F800F001E003E007C007C00F800F801F801F003F003F003E
003E007E007E007E007C00FC00FC00FC00FC00FC00FC00FC00FC00FC00FC00FC00FC00FC
00FC007C007E007E007E003E003E003F003F001F001F800F800F8007C007C003E001E000
F000F80078003C001E00070003>
16 60 -6 44 27] 40 dc
[<C000E00078003C001E001F000F00078007C003E003E001F001F001F800F800FC00FC00
7C007C007E007E007E003E003F003F003F003F003F003F003F003F003F003F003F003F00
3F003F003E007E007E007E007C007C00FC00FC00F801F801F001F003E003E007C007800F
001F001E003C007800E000C000>
16 60 -4 44 27] 41 dc
cmtt10.300 sf
[<7FFF80FFFF80FFFF80E00700E00F00E01E00E01C00003C0000780000700000F00001E0
0001C00003C0000780000700000F00001E03801C03803C0380780380700380FFFF80FFFF
80FFFF80>
24 25 -2 24 22] 90 dc
[<03800007E0000FE0001E70001C70001C70001C70001C77E01CE7E01DE7E00FC7000F8E
000F0E001E0E003F1C007F1C00739C00E3F800E1F800E0F1C0E0F1C071F9C07FFFC03F9F
801E0700>
24 25 -1 24 22] 38 dc
cmr10.300 sf
[<FFF03FE00F000F000F000C000F0008000F0010000F0020000F0040000F0080000F0100
000F0200000F0400000F0E00000F1F00000F2F00000F2780000F4780000F83C0000F01E0
000F01E0000F00F0000F00F8000F0078000F003C000F003C000F001E000F001F000F001F
80FFF07FF0>
32 28 -2 27 32] 75 dc
[<00E0000001900000030800000308000007080000070800000708000007080000071000
0007100000072000000740000003C03FE003800F00038006000380040005C0040009C008
0010E0100030E010006070200060702000E0384000E03C4000E01C8000E00F0020E00700
20700780403009C0401830E18007C03E00>
32 31 -2 29 32] 38 dc
23 @bop1
cmsy10.300 sf
849 328(\021)s
62 378(f)s
329(g)h
851 527(\021)s
62 577(f)s
1222(g)h
726 1436(\021)s
62 1486(f)s
846 1735(g)s
767 2433(\021)s
62 2482(f)s
763(g)h
cmbx10.432 sf
0 42(4.4)s
24(Macro)h
24(for)h
23(Raising)h
22(Exceptions)h
0 776(4.5)s
24(Exception)h
22(Blo)h
2(c)h
-2(k)h
22(Macros)h
24(\(Safe\))h
cmsl10.300 sf
0 328(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(RAISE\(P)h
15(EX\))h
0 527(F)s
-3(ast)h
14(impl)h
-1(emen)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(RAISE\(P)h
15(EX\))h
0 1436(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(BEGIN)h
0 2433(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(F)h
-1(OR)h
-1(GET)h
cmr7.300 sf
0 428(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(22.)h
0 627(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(22.)h
0 1785(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(23.)h
0 2532(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(23.)h
cmtt10.300 sf
338 129(EX)s
16(RAISE)h
772(exrai)h
1021 228(longjmp)s
83 378({_exrai\(P_EX\))s
-1(;})h
83 577({_EX_ID)s
20(=)h
22(\(P_EX\);)h
20(longjmp\(_EX_CU)h
-1(RR->_)h
-1(ex_jm)h
-1(bf,NO)h
-1(N_ZE)h
-1(RO\);})h
81 1088(EX)s
15(BEGIN)h
672 1137(ex)s
15(cxlc)h
1122 1187(ex)s
16(jmbf)h
1699 1287(EX)s
15(CURR)h
307 1337(if)s
83 1486({_ex_cx_t)s
20(_ex_cxlc;)h
303(\\)h
105 1536(_ex_cxlc._ex)s
-1(_mag1)h
19(=)h
22(_EX_MAG1;)h
63(\\)h
105 1586(_ex_cxlc._ex)s
-1(_mag2)h
19(=)h
22(_EX_MAG2;)h
63(\\)h
105 1636(_ex_cxlc._ex)s
-1(_prev)h
19(=)h
22(_EX_CURR;)h
63(\\)h
105 1685(_EX_CURR)s
216(=)h
22(&_ex_cxlc;)h
41(\\)h
105 1735(if)s
21(\(!setjmp\(_ex_c)h
-1(xlc.)h
-1(_ex_j)h
-1(mbf\)\))h
19({)h
740 1959(if)s
311(if)h
564(FALSE)h
939 2009(EX)s
15(WHEN)h
1488 2084(switch)s
99 2134(if)s
178(switch)h
686(if)h
268(switch)h
310 2183(switch)s
1661 2233(switch)s
139 2283(int)s
538 2333(if)s
83 2482(;EX_POP})s
20(else)h
21({EX_POP;)h
20(if)h
22(\(FALSE\))h
20({)h
1403 2607(EX)s
16(WHEN)h
533 2657(if)s
cmr10.300 sf
0 129(Tw)s
-1(o)h
16(forms)h
16(of)h
16(the)h
202(macro)h
16(are)h
17(giv)h
-1(en.)h
26(The)h
18(\014rst)h
17(simply)h
15(calls)h
158(whic)h
-1(h)h
17(p)h
1(erforms)h
16(lots)h
16(of)h
17(c)h
-1(hec)h
-1(ks)h
0 178(b)s
1(efore)h
14(raising)h
12(the)h
14(argumen)h
-1(t)h
12(exception.)h
19(The)h
13(fast)h
14(form)h
11(do)h
1(es)h
14(not)h
13(p)h
1(erform)h
12(an)h
-1(y)h
13(c)h
-1(hec)h
-1(king)h
14(|)h
12(it)h
13(just)h
14(p)h
1(erforms)h
12(the)h
0 228(essen)s
-1(tial)h
14(op)h
1(erations)h
14(of)h
14(setting)h
14(the)h
15(ID)h
13(and)h
14(executing)h
14(the)h
169(.)h
770 328([44])s
772 527([45])s
0 863(The)s
15(exception)h
16(blo)h
1(c)h
-1(k)h
15(macros)h
14(are)h
15(messy)h
14(and)h
15(deserv)h
-1(e)h
17(some)h
14(explanation.)h
20(These)h
16(macros)h
14(op)h
1(erate)h
16(as)h
15(a)h
15(coheren)h
-1(t)h
0 913(whole,)s
21(so)h
21(it)h
20(is)h
20(probably)h
20(b)h
1(est)h
21(to)h
20(read)h
21(them)h
20(through)h
20(a)h
20(few)h
21(times)h
19(to)h
20(see)h
22(ho)h
-1(w)h
20(they)h
21(in)h
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22(rather)h
21(than)h
0 963(attempting)s
12(to)h
13(understand)h
15(eac)h
-1(h)h
13(one)h
14(indep)h
1(enden)h
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18(Tw)h
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13(v)h
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14(of)h
13(the)h
13(exception)h
15(blo)h
1(c)h
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12(macros)h
13(are)h
14(giv)h
-1(en)h
12(|)h
0 1013(the)s
14(safe)h
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14(and)h
13(the)h
15(fast)h
14(v)h
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18(The)h
14(safe)h
14(v)h
-1(ersion)h
14(is)h
14(describ)h
1(ed)h
16(\014rst.)h
0 1088(The)s
188(macro)h
9(sets)h
11(the)h
10(stage)h
10(for)h
10(the)h
10(en)h
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11(exception)h
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10(b)h
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9(starting)h
10(a)h
9(comp)h
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9(statemen)h
-1(t,)h
10(declaring)h
0 1137(a)s
15(lo)h
1(cal)h
14(v)h
-2(ariable)h
15(for)h
15(the)h
16(stac)h
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15(no)h
1(de)h
16(\()h
163(\),)h
15(initiali)h
-1(zing)h
13(its)h
16(magi)h
-1(c)h
14(c)h
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16(n)h
-1(um)h
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1(ers,)h
14(pushing)h
16(it)h
15(on)h
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14(the)h
0 1187(stac)s
-1(k,)h
13(and)h
12(\014nally)h
11(sa)h
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13(curren)h
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14(execution)h
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13(in)h
13(the)h
187(\014eld)h
13(of)h
12(the)h
13(newly)h
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0 1237(This)s
14(w)h
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15(lo)h
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13(con)h
-1(text.)h
0 1287(Not)s
13(m)h
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13(c)h
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13(can)h
14(b)h
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13(cross)h
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14(v)h
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188(up)h
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0 1337(en)s
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71(statemen)h
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647 1436([46])s
0 1860(A)s
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19(p)h
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13(is)h
0 1959(most)s
13(simply)h
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74(statemen)h
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20(The)h
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138(branc)h
-1(h)h
0 2009(so)s
14(as)h
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175(macro.)h
0 2084(An)s
12(earlier)h
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14(exceptions)h
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154(statemen)h
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12(instead)h
0 2134(of)s
10(an)h
66(c)h
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17(A)h
152(statemen)h
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11(is)h
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66(c)h
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145(es)h
11(prohibit)h
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0 2183(lab)s
1(els.)h
17(Ho)h
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145(es)h
13(had)h
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13(that)h
13(it)h
12(used)h
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1(oin)h
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14(as)h
13(exception)h
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13(it)h
13(w)h
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157(m)h
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12(b)h
1(e)h
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12(t)h
-1(yp)h
1(e)h
80(.)h
17(K&R88)h
13(\(section)h
14(A9.4\))h
12(and)h
13(ANSI)h
13(\(section)h
14(6.6.4.2\))h
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13(all)h
12(in)h
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0 2333(still)s
13(preclude)h
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19(So)h
13(an)h
71(c)h
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14(had)h
14(to)h
13(b)h
1(e)h
15(used.)h
689 2433([47])s
0 2607(The)s
16(start)h
17(of)h
15(eac)h
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17(handler)h
16(in)h
15(the)h
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15(is)h
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15(b)h
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15(a)h
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15(to)h
16(the)h
179(macro.)h
23(All)h
15(it)h
15(do)h
1(es)h
17(is)h
0 2657(add)s
14(an)h
13(extra)h
15(clause)h
14(on)h
-1(to)h
14(the)h
71(c)h
-1(hain.)h
954 2770(23)s
14 2 385 129 r
14 2 1267 129 r
13 2 493 328 r
13 2 681 328 r
13 2 495 527 r
13 2 683 527 r
14 2 128 1088 r
14 2 659 1137 r
14 2 719 1137 r
14 2 1109 1187 r
14 2 1169 1187 r
14 2 1686 1287 r
14 2 1746 1287 r
13 2 493 1436 r
14 2 986 2009 r
13 2 493 2433 r
14 2 1450 2607 r
23 @eop
24 @bop0
cmbx10.432 sf
[<1C007F00FF80FF80FFC0FFC0FFC07FC01CC000C000C001C0018001800380070006000E
001C0038003000>
16 21 -5 8 19] 44 dc
24 @bop1
cmsy10.300 sf
854 42(\021)s
62 91(f)s
676(g)h
763 340(\021)s
62 390(f)s
393(g)h
678 639(\021)s
62 689(f)s
523(g)h
676 1038(\021)s
62 1088(f)s
438(g)h
728 1517(\021)s
62 1567(f)s
846 1716(g)s
769 1848(\021)s
62 1898(f)s
763(g)h
856 2029(\021)s
62 2079(f)s
676(g)h
765 2211(\021)s
62 2261(f)s
393(g)h
680 2392(\021)s
62 2442(f)s
1025(g)h
678 2574(\021)s
62 2624(f)s
699(g)h
cmbx10.432 sf
0 1255(4.6)s
24(F)h
-6(ast,)h
24(Inline)h
21(V)h
-6(ersions)h
22(of)h
24(the)h
22(Exception)h
22(Blo)h
2(c)h
-2(k)h
22(Macros)h
cmsl10.300 sf
0 42(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(WHEN\(P)h
15(EX\))h
0 340(Safe)s
14(implem)h
-1(en)h
-1(tati)h
-1(on)h
12(of)h
13(EX)h
16(OTHERS)h
0 639(Safe)s
14(implem)h
-1(en)h
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-1(on)h
12(of)h
13(EX)h
16(END)h
0 1038(Safe)s
14(implem)h
-1(en)h
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-1(on)h
12(of)h
13(EX)h
16(POP)h
0 1517(F)s
-3(ast)h
14(impl)h
-1(emen)h
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12(of)h
13(EX)h
16(BEGIN)h
0 1848(F)s
-3(ast)h
14(impl)h
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0 2029(F)s
-3(ast)h
14(impl)h
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12(of)h
13(EX)h
16(WHEN\(P)h
15(EX\))h
0 2211(F)s
-3(ast)h
14(impl)h
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12(of)h
13(EX)h
16(OTHERS)h
0 2392(F)s
-3(ast)h
14(impl)h
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12(of)h
13(EX)h
16(END)h
0 2574(F)s
-3(ast)h
14(impl)h
-1(emen)h
-1(tati)h
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12(of)h
13(EX)h
16(POP)h
cmr7.300 sf
0 138(This)s
12(macro)h
10(is)h
12(in)h
-1(v)h
-1(ok)h
-1(ed)h
13(in)h
11(de\014nition)h
13(23.)h
0 437(This)s
12(macro)h
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12(in)h
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13(in)h
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0 736(This)s
12(macro)h
10(is)h
12(in)h
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13(in)h
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0 1134(This)s
12(macro)h
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12(in)h
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13(in)h
11(de\014nition)h
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0 1762(This)s
12(macro)h
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12(in)h
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13(in)h
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0 1944(This)s
12(macro)h
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12(in)h
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0 2125(This)s
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0 2307(This)s
12(macro)h
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13(23.)h
0 2488(This)s
12(macro)h
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83 1088({_expop\(&_ex_)s
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83 1567({_ex_cx_t)s
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105 1616(_ex_cxlc._ex)s
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105 1666(_EX_CURR)s
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83 2624({_EX_CURR)s
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649 1517([52])s
691 1848([53])s
777 2029([54])s
686 2211([55])s
602 2392([56])s
599 2574([57])s
954 2770(24)s
13 2 493 42 r
13 2 686 42 r
14 2 138 205 r
14 2 1182 205 r
13 2 493 340 r
14 2 928 554 r
13 2 493 639 r
14 2 1790 803 r
14 2 1851 803 r
14 2 1113 903 r
13 2 493 1038 r
13 2 495 1517 r
13 2 495 1848 r
13 2 495 2029 r
13 2 688 2029 r
13 2 495 2211 r
13 2 495 2392 r
13 2 495 2574 r
24 @eop
25 @bop0
cmr10.432 sf
[<007F000001FFC0000380F0000600380008001C0018000C001000060030000600300006
0030000600380006003C0006003E000C001F8008001FC010000FF0200007F8C00003FF80
0001FF0000007FC00000FFE000030FF8000603FC001C01FE0038007E0030003F0070000F
0070000780E0000780E0000380E0000380E0000380E0000380F000030070000700780006
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32 41 -2 39 30] 56 dc
[<FFFFFFFF00FFFFFFFF0007E0003F0003E000070003E000038003E000018003E0000180
03E000008003E000008003E000008003E000008003E000004003E002004003E002004003
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0E000003E006000003E002000003E002000003E002000003E002000003E002000003E000
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40 41 -2 40 39] 70 dc
[<0783F800FF8C1C00FF900E000FA0070007A0078007C0078007C0078007800780078007
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32 26 -1 25 33] 110 dc
[<0080000080000080000080000180000180000180000380000380000780000F80001FFF
80FFFF800780000780000780000780000780000780000780000780000780000780000780
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24 37 -1 36 23] 116 dc
[<FFF03FF0FFF03FF00FC01F8007C00E0003C0080001E0180000F0100000F82000007840
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32 26 -1 25 32] 120 dc
cmr7.300 sf
[<07C00C201070207060006000C000CF00D0C0E060C020C030C030C03040306020206010
C00F00>
16 19 -2 18 17] 54 dc
[<0F00308060404060C020C030C030C0304030607030B00F30003000200060E040E08041
003E00>
16 19 -2 18 17] 57 dc
cmsl10.300 sf
[<FFF87FE00F800F000F0006000F0004000F0004000F0004000F0004001E0008001E0008
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32 29 -6 27 31] 85 dc
25 @bop1
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740 2594(EX)s
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cmr10.300 sf
0 129(The)s
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371 1150([59])s
279 1349([60])s
772 1748([61])s
482 1797([62])s
601 1847([63])s
944 1897([64])s
823 1947([65])s
459 1997([66])s
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21 2 469 42 r
14 2 296 129 r
13 2 216 278 r
18 2 396 863 r
14 2 248 951 r
14 2 1694 951 r
13 2 267 1150 r
13 2 176 1349 r
13 2 386 1748 r
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13 2 683 1748 r
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14 2 1220 2320 r
13 2 282 2420 r
13 2 355 2420 r
13 2 578 2420 r
14 2 727 2594 r
14 2 787 2594 r
14 2 955 2644 r
25 @eop
26 @bop0
26 @bop1
cmti10.300 sf
1292 589(this)s
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456 42(\021)s
62 91(f)s
306(g)h
573 365(\021)s
62 415(f)s
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149 2059(g)s
433 2283(\021)s
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765(g)h
cmsl10.300 sf
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12(if)h
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0 141(This)s
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cmr10.300 sf
378 42([62])s
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cmr10.432 sf
[<007F000003FFC0000701F0000C00F80010007C001C007C003E007E003E003E003E003E
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32 41 -2 39 30] 51 dc
[<0783F000FF8C1C00FFB00F0007A0078007C003C0078003E0078001E0078001F0078001
F0078000F8078000F8078000F8078000F8078000F8078000F8078000F8078000F0078001
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32 38 -1 25 33] 112 dc
cmsl10.300 sf
[<03FFFF8007C00F0007001E0006003C0006007C00040078000400F0000801E0000803E0
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0001E0080003C0080007800800078018000F0010001E0030003C0030003C00F0007803E0
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32 28 -2 27 25] 90 dc
cmtt10.300 sf
[<3801807C0380FE0380FE0700EE0700EE0E00EE0E00EE0E00FE1C00FE1C007C38003838
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24 32 -1 28 22] 37 dc
27 @bop1
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468 1454(\021)s
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785(g)h
377 1651(\021)s
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105 2149(Bom)s
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16(con)h
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105 2249(P)s
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14(the)h
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0 2670(Bom)s
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12(if)h
14(the)h
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15(is)h
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cmtt10.300 sf
254 128(ex)s
15(bomb)h
650 178(exrai)s
83 375(LOCAL)s
21(void)h
21(ex_bomb)h
20(P_\(\(void\)\);)h
83 425(LOCAL)s
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83 475({)s
105 525(char)s
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83 2000(#else)s
83 2299(#endif)s
83 2349(})s
cmr10.300 sf
0 128(The)s
17(function)h
181(writes)h
17(out)h
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333 276([67)s
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13(function)h
149(p)h
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15(\014rst)h
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297 1651([69])s
772 2050([61])s
1175 2099([70])s
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538 2199([72])s
395 2249([73])s
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14(call.)h
1070 2670([70])s
954 2770(27)s
18 2 456 42 r
14 2 301 128 r
14 2 637 178 r
13 2 216 276 r
18 2 396 1120 r
14 2 248 1206 r
14 2 1620 1305 r
14 2 1680 1305 r
13 2 267 1454 r
13 2 176 1651 r
13 2 386 2050 r
13 2 460 2050 r
13 2 683 2050 r
27 @eop
28 @bop0
cmtt10.300 sf
[<1C303F78FFF8F7E061C0>
16 5 -4 24 22] 126 dc
28 @bop1
cmsy10.300 sf
62 42(f)s
83 440(g)s
748 714(\021)s
62 764(f)s
83 1162(g)s
512 1436(\021)s
62 1486(f)s
83 1636(g)s
369 1860(\021)s
62 1910(f)s
612(g)h
cmsl10.300 sf
0 714(Bom)s
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12(if)h
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cmr7.300 sf
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12(macro)h
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cmr10.300 sf
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cmtt10.300 sf
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38 @eop
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cmsy10.300 sf
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cmtt10.300 sf
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83 2370(})s
39 @eop
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cmbx10.518 sf
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40 46 -3 45 41] 54 dc
[<FFFFFFFFF00000FFFFFFFFFF0000FFFFFFFFFFC00000FFC000FFF00000FFC0000FFC00
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56 49 -2 48 63] 68 dc
[<FFFFC000007FFFF0FFFFE000007FFFF0FFFFF000007FFFF000FFF8000000F80000FFFC
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cmti10.300 sf
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24 28 -2 27 16] 73 dc
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40 @bop1
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cmbx10.432 sf
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954 2770(40)s
14 2 325 722 r
14 2 179 2030 r
40 @eop
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cmbx10.432 sf
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cmtt10.300 sf
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954 2770(41)s
14 2 570 2594 r
14 2 1829 2644 r
41 @eop
42 @bop0
cmbx10.432 sf
[<FFFF80FFFF80FFFF80FFFF80FFFF80FFFF80>
24 6 -1 16 23] 45 dc
42 @bop1
cmbx10.432 sf
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cmtt10.300 sf
77 42(EX)s
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642 166(EX)s
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858 266(EX)s
15(BEGIN)h
673 390(EX)s
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717 440(ex)s
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cmr10.300 sf
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954 2770(42)s
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42 @eop
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cmbx10.432 sf
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12(is)h
12(raised,)h
0 951(but)s
14(b)h
1(efore)h
15(the)h
14(handlers)h
15(are)h
14(scanned.)h
19(This)h
14(w)h
-1(ould)h
13(allo)h
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12(an)h
14(opp)h
1(ortunit)h
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13(for)h
14(cleaning)h
13(up.)h
0 1025(*)s
14(Rew)h
-1(ork)h
13(the)h
15(terminology)h
11(so)h
14(that)h
14(it)h
14(is)h
13(more)h
13(consisten)h
-1(t.)h
0 1100(*)s
14(Hierarc)h
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13(exceptions.)h
0 1175(That's)s
14(the)h
14(end)h
15(of)h
13(this)h
14(pac)h
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-2(age!)h
954 2770(43)s
43 @eop
@end