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| author | Tony Cook <tony@develop-help.com> | 2019-08-27 14:44:35 +1000 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2019-08-30 08:44:28 -0600 |
| commit | 060b1fe22cc4067b315c065f639cae016660a485 (patch) | |
| tree | 88376bc98ecfe3691d0a08a305d09053727ae7c0 /pod/perlsub.pod | |
| parent | 3f1e98f5a21968dcf33fdecdc51b0ff9b485f86a (diff) | |
| download | perl-060b1fe22cc4067b315c065f639cae016660a485.tar.gz | |
(perl #134365) IFF -> iff and talk about strict a bit
The IFF can be confusing, since "iff" for "if and only if" is
normally presented in lower case.
Since we really want people using strict, firstly tell users about
the behaviour under strict.
Diffstat (limited to 'pod/perlsub.pod')
| -rw-r--r-- | pod/perlsub.pod | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/pod/perlsub.pod b/pod/perlsub.pod index 4571cbcc21..b5c05d274e 100644 --- a/pod/perlsub.pod +++ b/pod/perlsub.pod @@ -224,7 +224,12 @@ X<recursion> &foo(); # the same &foo; # foo() get current args, like foo(@_) !! - foo; # like foo() IFF sub foo predeclared, else "foo" + use strict 'subs'; + foo; # like foo() iff sub foo predeclared, else + # a compile-time error + no strict 'subs'; + foo; # like foo() iff sub foo predeclared, else + # a literal string "foo" Not only does the C<&> form make the argument list optional, it also disables any prototype checking on arguments you do provide. This |