diff options
Diffstat (limited to 'pod/perlguts.pod')
| -rw-r--r-- | pod/perlguts.pod | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/pod/perlguts.pod b/pod/perlguts.pod index 3f3639667b..c397142b08 100644 --- a/pod/perlguts.pod +++ b/pod/perlguts.pod @@ -655,7 +655,8 @@ To create a mortal variable, use the functions: SV* sv_mortalcopy(SV*) The first call creates a mortal SV, the second converts an existing SV to -a mortal SV, the third creates a mortal copy of an existing SV. +a mortal SV, the third creates a mortal copy of an existing SV (possibly +destroying it in the process). The mortal routines are not just for SVs -- AVs and HVs can be made mortal by passing their address (and casting them to C<SV*>) to the C<sv_2mortal> or @@ -848,6 +849,7 @@ The current kinds of Magic Virtual Tables are: i vtbl_isaelem @ISA array element L 0 (but sets RMAGICAL) Perl Module/Debugger??? l vtbl_dbline Debugger? + o vtbl_collxfrm Locale Collation P vtbl_pack Tied Array or Hash p vtbl_packelem Tied Array or Hash element q vtbl_packelem Tied Scalar or Handle @@ -2051,7 +2053,7 @@ Adds magic to an SV. =item sv_mortalcopy Creates a new SV which is a copy of the original SV. The new SV is marked -as mortal. +as mortal. The old SV may become invalid if it was marked as a temporary. SV* sv_mortalcopy _((SV* oldsv)); @@ -2310,10 +2312,14 @@ Note that C<sv_setref_pv> copies the pointer while this copies the string. =item sv_setsv Copies the contents of the source SV C<ssv> into the destination SV C<dsv>. -The source SV may be destroyed if it is mortal. +The source SV may be destroyed if it is mortal or temporary. void sv_setsv _((SV* dsv, SV* ssv)); +=item SvSetSV + +A wrapper around C<sv_setsv>. Safe even if C<dst==ssv>. + =item SvSTASH Returns the stash of the SV. |