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| author | Hugo van der Sanden <hv@crypt.org> | 2003-03-18 00:27:19 +0000 |
|---|---|---|
| committer | hv <hv@crypt.org> | 2003-03-18 00:27:19 +0000 |
| commit | 6a61d433021b3577bc50df7d2cb1989f13551b88 (patch) | |
| tree | 43507d53c2894d38afe3889008ce2ee1a956590a /pod/perlop.pod | |
| parent | 4eee6e183013a0f0e9dce0d53c643393a9e49455 (diff) | |
| download | perl-6a61d433021b3577bc50df7d2cb1989f13551b88.tar.gz | |
clarify behaviour of $a++
p4raw-id: //depot/perl@19014
Diffstat (limited to 'pod/perlop.pod')
| -rw-r--r-- | pod/perlop.pod | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pod/perlop.pod b/pod/perlop.pod index ad46301b42..cd36ec1b6e 100644 --- a/pod/perlop.pod +++ b/pod/perlop.pod @@ -127,6 +127,10 @@ character within its range, with carry: print ++($foo = 'Az'); # prints 'Ba' print ++($foo = 'zz'); # prints 'aaa' +C<undef> is always treated as numeric, and in particular is changed +to C<0> before incrementing (so that a post-increment of an undef value +will return C<0> rather than C<undef>). + The auto-decrement operator is not magical. =head2 Exponentiation |