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+%%
+%% This is file `ltxcmds-test-ifboxempty.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% ltxcmds.dtx (with options: `test-ifboxempty')
+%%
+%% This is a generated file.
+%%
+%% Copyright (C) 2009-2011 by
+%% Heiko Oberdiek <heiko.oberdiek at googlemail.com>
+%%
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3c of this license or (at your option) any later
+%% version. This version of this license is in
+%% http://www.latex-project.org/lppl/lppl-1-3c.txt
+%% and the latest version of this license is in
+%% http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of
+%% LaTeX version 2005/12/01 or later.
+%%
+%% This work has the LPPL maintenance status "maintained".
+%%
+%% This Current Maintainer of this work is Heiko Oberdiek.
+%%
+%% The Base Interpreter refers to any `TeX-Format',
+%% because some files are installed in TDS:tex/generic//.
+%%
+%% This work consists of the main source file ltxcmds.dtx
+%% and the derived files
+%% ltxcmds.sty, ltxcmds.pdf, ltxcmds.ins, ltxcmds.drv,
+%% ltxcmds-test1.tex, ltxcmds-test-gobble.tex,
+%% ltxcmds-test-ifempty.tex, ltxcmds-test-zapspace.tex,
+%% ltxcmds-test-ifboxempty.tex.
+%%
+\catcode`\{=1 %
+\catcode`\}=2 %
+\catcode`\#=6 %
+\catcode`\@=11 %
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+ \input ltxcmds.sty\relax
+\else
+ \RequirePackage{ltxcmds}[2011/03/16]%
+\fi
+\def\msg#{\immediate\write16}
+ % make box 0 void
+\begingroup
+ \setbox0=\box0 %
+\endgroup
+\ifvoid0 %
+\else
+ \errmessage{Voiding box 0 failed}%
+\fi
+\setbox2=\box0 %
+\def\test#1#2{%
+ \@test{#1}{#2}%
+ \@@test{#1}{#2}%
+ \chardef\x=#1%
+ \@test\x{#2}%
+ \@@test\x{#2}%
+}
+\def\@test#1#2{%
+ \begingroup
+ \setbox9=\hbox{%
+ \def\TestExpected{#2}%
+ \ltx@IfBoxEmpty{#1}{%
+ \def\TestResult{Y}%
+ }{%
+ \def\TestResult{N}%
+ }%
+ \ifx\TestExpected\TestResult
+ \msg{* Test passed.}%
+ \else
+ \errmessage{Test failed!}%
+ \fi
+ }%
+ \ifdim\wd9=0pt %
+ \else
+ \errmessage{Unwanted space?}%
+ \fi
+ \endgroup
+}
+\def\@@test#1#2{%
+ \begingroup
+ \setbox9=\hbox{%
+ \def\TestExpected{#2}%
+ \ifvoid#1\def\TestExpected{Y}\fi
+ \ltx@IfBoxVoidOrEmpty{#1}{%
+ \def\TestResult{Y}%
+ }{%
+ \def\TestResult{N}%
+ }%
+ \ifx\TestExpected\TestResult
+ \msg{* Test passed.}%
+ \else
+ \errmessage{Test failed!}%
+ \fi
+ }%
+ \ifdim\wd9=0pt %
+ \else
+ \errmessage{Unwanted space?}%
+ \fi
+ \endgroup
+}
+\test0N
+\test2N
+\setbox0=\hbox{}
+\test0Y
+\setbox2=\hbox{}
+\test2Y
+\setbox0=\vbox{}
+\test0Y
+\setbox2=\vbox{}
+\test0Y
+\setbox0=\hbox{ }%
+\test0N
+\setbox2=\hbox{ }%
+\test2N
+\setbox0=\hbox{\penalty1}%
+\test0N
+\setbox2=\hbox{\penalty1}%
+\test2N
+\csname @@end\endcsname\end
+
+\endinput
+%%
+%% End of file `ltxcmds-test-ifboxempty.tex'.