diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/pods/perltrap.pod')
| -rw-r--r-- | Master/tlpkg/tlperl/lib/pods/perltrap.pod | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/Master/tlpkg/tlperl/lib/pods/perltrap.pod b/Master/tlpkg/tlperl/lib/pods/perltrap.pod index b5f09351669..99e25c8d490 100644 --- a/Master/tlpkg/tlperl/lib/pods/perltrap.pod +++ b/Master/tlpkg/tlperl/lib/pods/perltrap.pod @@ -497,7 +497,7 @@ of a variable, or as a delimiter for any kind of quote construct. Double darn. $a = ("foo bar"); - $b = q baz; + $b = q baz ; print "a is $a, b is $b\n"; # perl4 prints: a is foo bar, b is baz @@ -665,7 +665,7 @@ are to used around the name. # perl4 prints: 2 # perl5 fails with syntax error - @ = (1..3); + @a = (1..3); print "$#{a}"; # perl4 prints: {a} @@ -704,7 +704,7 @@ tries to be more precise. For example, on a Solaris Sparc: # Perl5 prints: 7.373504 - 7.375039999999999614 + 7.373503999999999614 Notice how the first result looks better in Perl 5. @@ -960,14 +960,15 @@ being required. =item * Comma operator in scalar context gives scalar context to args The comma operator in a scalar context is now guaranteed to give a -scalar context to its arguments. +scalar context to its last argument. It gives scalar or void context +to any preceding arguments, depending on circumstances. @y= ('a','b','c'); $x = (1, 2, @y); print "x = $x\n"; - # Perl4 prints: x = c # Thinks list context interpolates list - # Perl5 prints: x = 3 # Knows scalar uses length of list + # Perl4 prints: x = c # Interpolates array @y into the list + # Perl5 prints: x = 3 # Evaluates array @y in scalar context =item * C<sprintf()> prototyped as C<($;@)> |