diff options
Diffstat (limited to 'pod/perlguts.pod')
| -rw-r--r-- | pod/perlguts.pod | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/pod/perlguts.pod b/pod/perlguts.pod index ecf8610756..20a11ac45c 100644 --- a/pod/perlguts.pod +++ b/pod/perlguts.pod @@ -1404,7 +1404,7 @@ extensions. =item AvFILL -See C<av_len>. +Same as C<av_len>. =item av_clear @@ -1851,6 +1851,11 @@ Prepares a starting point to traverse a hash table. I32 hv_iterinit _((HV* tb)); +Note that hv_iterinit I<currently> returns the number of I<buckets> in +the hash and I<not> the number of keys (as indicated in the Advanced +Perl Programming book). This may change in future. Use the HvKEYS(hv) +macro to find the number of keys in a hash. + =item hv_iterkey Returns the key from the current position of the hash iterator. See @@ -2823,6 +2828,35 @@ Dereferences an RV to return the SV. SV* SvRV (SV* sv); +=item SvTAINT + +Taints an SV if tainting is enabled + + SvTAINT (SV* sv); + +=item SvTAINTED + +Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if not. + + SvTAINTED (SV* sv); + +=item SvTAINTED_off + +Untaints an SV. Be I<very> careful with this routine, as it short-circuits +some of Perl's fundamental security features. XS module authors should +not use this function unless they fully understand all the implications +of unconditionally untainting the value. Untainting should be done in +the standard perl fashion, via a carefully crafted regexp, rather than +directly untainting variables. + + SvTAINTED_off (SV* sv); + +=item SvTAINTED_on + +Marks an SV as tainted. + + SvTAINTED_on (SV* sv); + =item sv_setiv Copies an integer into the given SV. |