XS/Typemap/Typemap.xs

63 is responsible for converting perl variables (SV, AV, HV and CV) to
64 and from that type.
71 in and out of the XS layer. This can be used if the C code wants
85      by default and we don't want to decrement the ref count twice
93 Used to pass in and return a reference to an SV.
159 and (usually) 0 on success. If the return value is -1 this typemap
204 passed to C and converted to an IV when passed back to Perl.
245 A boolean type. This can be used to pass true and false values to and
360 A Perl floating point number. Similar to T_IV and T_UV in that the
410 # Pass in a value. Store the value in some static memory and
422 # pass in the pointer and return the value
434 Similar to T_PTR except that the pointer is stored in a scalar and the
444 # Pass in a value. Store the value in some static memory and
456 # pass in the pointer and return the value
482 # Pass in a value. Store the value in some static memory and
494 # pass in the pointer and return the value
525 # Pass in a value. Store the value in some static memory and
537 # pass in the pointer and return the value
567 SV. Here the representation of the data is irrelevant to perl and the
571 represented by 8 bytes then those 8 bytes are stored in the SV (and
579 and can be used as an alternative to T_PTRREF without having to worry
647 T_OPAQUE supports input and output of simple types.
677 RETVAL to an SV and push it onto the stack. This is only really useful
678 if the number of items to be returned is known at compile time and you
723 and for pushing the contents of a C array onto the perl
731 the input and output arrays must be the last elements in the list.
749 automatically work out that it contains variables of type C<int> and
751 pointer '*' and 'Array' tags are removed from the name to determine
756 # Test passes in an integer array and returns it along with
784 This is used for passing perl filehandles to and from C using
828 This is used for passing perl filehandles to and from C using
829 C<PerlIO *> structures. The file handle can used for reading and