Sets up the C<ix> variable for an XSUB which has aliases. This is usually
handled automatically by C<xsubpp>.
+=for apidoc Ams||dUNDERBAR
+Sets up the C<padoff_du> variable for an XSUB that wishes to use
+C<UNDERBAR>.
+
+=for apidoc AmU||UNDERBAR
+The SV* corresponding to the $_ variable. Works even if there
+is a lexical $_ in scope.
+
=cut
*/
#define XSINTERFACE_FUNC_SET(cv,f) \
CvXSUBANY(cv).any_dxptr = (void (*) (pTHX_ void*))(f)
+#define dUNDERBAR I32 padoff_du = find_rundefsvoffset()
+#define UNDERBAR ((padoff_du == NOT_IN_PAD \
+ || PAD_COMPNAME_FLAGS(padoff_du) & SVpad_OUR) \
+ ? DEFSV : PAD_SVl(padoff_du))
+
/* Simple macros to put new mortal values onto the stack. */
/* Typically used to return values from XS functions. */
=head1 Variables created by C<xsubpp> and C<xsubpp> internal functions
-=for apidoc AmU||newXSproto
+=for apidoc AmU||newXSproto|char* name|XSUBADDR_t f|char* filename|const char *proto
Used by C<xsubpp> to hook up XSUBs as Perl subs. Adds Perl prototypes to
the subs.