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Diffstat (limited to 'pod/perlguts.pod')
| -rw-r--r-- | pod/perlguts.pod | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/pod/perlguts.pod b/pod/perlguts.pod index 0fa74458a7..c6ba0115e2 100644 --- a/pod/perlguts.pod +++ b/pod/perlguts.pod @@ -1088,10 +1088,10 @@ two, the local time zone's standard and summer time abbreviations. To handle this situation, the PPCODE directive is used and the stack is extended using the macro: - EXTEND(sp, num); + EXTEND(SP, num); -where C<sp> is the stack pointer, and C<num> is the number of elements the -stack should be extended by. +where C<SP> is the macro that represents the local copy of the stack pointer, +and C<num> is the number of elements the stack should be extended by. Now that there is room on the stack, values can be pushed on it using the macros to push IVs, doubles, strings, and SV pointers respectively: @@ -1144,6 +1144,7 @@ must manipulate the Perl stack. These include the following macros and functions: dSP + SP PUSHMARK() PUTBACK SPAGAIN @@ -1575,7 +1576,8 @@ The C variable which corresponds to Perl's $^W warning variable. =item dSP -Declares a stack pointer variable, C<sp>, for the XSUB. See C<SP>. +Declares a local copy of perl's stack pointer for the XSUB, available via +the C<SP> macro. See C<SP>. =item dXSARGS |