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| author | Karl Williamson <public@khwilliamson.com> | 2011-11-12 13:36:53 -0700 |
|---|---|---|
| committer | Karl Williamson <public@khwilliamson.com> | 2012-12-23 14:23:40 -0700 |
| commit | 5b48d9bbd702cd2c0a0863c898b3d4b120daf256 (patch) | |
| tree | 41ee0578a202e19cdd4d0d2cccba8ec166eb727e /pod/perlhack.pod | |
| parent | eba68aa09a0b159ee4eef3cee1bd58ee95fdb81a (diff) | |
| download | perl-5b48d9bbd702cd2c0a0863c898b3d4b120daf256.tar.gz | |
perlhack: in-line functions need extra care
Diffstat (limited to 'pod/perlhack.pod')
| -rw-r--r-- | pod/perlhack.pod | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pod/perlhack.pod b/pod/perlhack.pod index 0dccf9a6f1..e5347ff074 100644 --- a/pod/perlhack.pod +++ b/pod/perlhack.pod @@ -387,6 +387,15 @@ Do not declare variables using "register". It may be counterproductive with modern compilers, and is deprecated in C++, under which the Perl source is regularly compiled. +=item * + +In-line functions that are in headers that are accessible to XS code +need to be able to compile without warnings with commonly used extra +compilation flags, such as gcc's C<-Wswitch-default> which warns +whenever a switch statement does not have a "default" case. The use of +these extra flags is to catch potential problems in legal C code, and is +often used by Perl aggregators, such as Linux distributors. + =back =head3 Test suite |