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| author | Father Chrysostomos <sprout@cpan.org> | 2011-10-16 11:59:41 -0700 |
|---|---|---|
| committer | Father Chrysostomos <sprout@cpan.org> | 2011-10-16 11:59:41 -0700 |
| commit | 51707595971928e4f48f4871962982d85b856b27 (patch) | |
| tree | 1d7c75173708fc3256f4300e4e4fc7549dd932a2 /pod/perlfunc.pod | |
| parent | 5ae38afedfd6367f5e85e3f1aa329082622f478a (diff) | |
| download | perl-51707595971928e4f48f4871962982d85b856b27.tar.gz | |
Document calling convention for XS cmp routines
Diffstat (limited to 'pod/perlfunc.pod')
| -rw-r--r-- | pod/perlfunc.pod | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pod/perlfunc.pod b/pod/perlfunc.pod index bff6566c8d..cf610fed8e 100644 --- a/pod/perlfunc.pod +++ b/pod/perlfunc.pod @@ -5878,6 +5878,10 @@ into the subroutine as the package global variables $a and $b (see example below). Note that in the latter case, it is usually highly counter-productive to declare $a and $b as lexicals. +If the subroutine is an XSUB, the elements to be compared are pushed on to +the stack, the way arguments are usually passed to XSUBs. $a and $b are +not set. + The values to be compared are always passed by reference and should not be modified. |