/*
=for apidoc av_clear
-Clears an array, making it empty. Does not free the memory C<av> uses to
-store its list of scalars. If any destructors are triggered as a result,
-C<av> itself may be freed when this function returns.
+Frees the all the elements of an array, leaving it empty.
+The XS equivalent of C<@array = ()>. See also L</av_undef>.
-Perl equivalent: C<@myarray = ();>.
+Note that it is possible that the actions of a destructor called directly
+or indirectly by freeing an element of the array could cause the reference
+count of the array itself to be reduced (e.g. by deleting an entry in the
+symbol table). So it is a possibility that the AV could have been freed
+(or even reallocated) on return from the call unless you hold a reference
+to it.
=cut
*/
/*
=for apidoc av_undef
-Undefines the array. Frees the memory used by the av to store its list of
-scalars. If any destructors are triggered as a result, C<av> itself may
-be freed.
+Undefines the array. The XS equivalent of C<undef(@array)>.
+
+As well as freeing all the elements of the array (like C<av_clear()>), this
+also frees the memory used by the av to store its list of scalars.
+
+See L</av_clear> for a note about the array possibly being invalid on
+return.
=cut
*/
Frees the all the elements of a hash, leaving it empty.
The XS equivalent of C<%hash = ()>. See also L</hv_undef>.
-If any destructors are triggered as a result, the hv itself may
-be freed.
+See L</av_clear> for a note about the hash possibly being invalid on
+return.
=cut
*/
As well as freeing all the elements of the hash (like C<hv_clear()>), this
also frees any auxiliary data and storage associated with the hash.
-If any destructors are triggered as a result, the hv itself may
-be freed.
-
-See also L</hv_clear>.
+See L</av_clear> for a note about the hash possibly being invalid on
+return.
=cut
*/