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authorAbhijit Menon-Sen <ams@wiw.org>2003-10-07 19:51:35 +0000
committerAbhijit Menon-Sen <ams@wiw.org>2003-10-07 19:51:35 +0000
commitf386e49277b57f6d42dd4f4526622f4325cbeb34 (patch)
tree8ab3635a3bfd504e67fc04625d17cd9d8018ffc0 /pod/perlsyn.pod
parent73220cd551d1f40d5bd6be89b18006cdde57f73b (diff)
downloadperl-f386e49277b57f6d42dd4f4526622f4325cbeb34.tar.gz
Minor tweaks to pod/perlsyn.pod (as suggested by Yves Orton),
sv.c (Tim Bunce), t/op/pow.t (John P. Linderman). p4raw-id: //depot/perl@21420
Diffstat (limited to 'pod/perlsyn.pod')
-rw-r--r--pod/perlsyn.pod14
1 files changed, 7 insertions, 7 deletions
diff --git a/pod/perlsyn.pod b/pod/perlsyn.pod
index 80df487622..8c7c9a36c0 100644
--- a/pod/perlsyn.pod
+++ b/pod/perlsyn.pod
@@ -94,8 +94,8 @@ expression.
The only kind of simple statement is an expression evaluated for its
side effects. Every simple statement must be terminated with a
semicolon, unless it is the final statement in a block, in which case
-the semicolon is optional. (A semicolon is still encouraged there if
-the block takes up more than one line, because you may eventually add
+the semicolon is optional. (A semicolon is still encouraged if the
+block takes up more than one line, because you may eventually add
another line.) Note that there are some operators like C<eval {}> and
C<do {}> that look like compound statements, but aren't (they're just
TERMs in an expression), and thus need an explicit termination if used
@@ -103,12 +103,12 @@ as the last item in a statement.
=head2 Truth and Falsehood
-A false value is C<undef>, the number 0, the string C<'0'> and the
-empty string C<''>. Note that unlike some languages, these are three
-distinctly different values. A true value is everything which is not
-false.
+The number 0, the strings C<'0'> and C<''>, the empty list C<()>, and an
+explicit C<undef> are all false in a boolean context. Every other value
+is true.
-Note that while 0, 0.0 and C<'0'> are false, C<'0.0'> is true.
+Note that while 0, 0.0 and C<'0'> are false, C<'0.0'> and C<'0e0'> are
+true, but evaluate to 0 in a numeric context.
=head2 Statement Modifiers