source: src/libcfa/virtual.c@ e2f7bc3

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since e2f7bc3 was a5f0529, checked in by Andrew Beach <ajbeach@…>, 8 years ago

Virtual casts have been added. They still require a lot of hand coded support to work but for simple cases it should be enough.

  • Property mode set to 100644
File size: 854 bytes
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// virtual.c --
8//
9// Author : Andrew Beach
10// Created On : Tus Jul 11 15:10:00 2017
11// Last Modified By : Andrew Beach
12// Last Modified On : Wed Jul 26 14:24:00 2017
13// Update Count : 1
14//
15
16#include "virtual.h"
17
18int __cfa__is_parent( struct __cfa__parent_vtable const * parent,
19 struct __cfa__parent_vtable const * child ) {
20 do {
21 if ( parent == child )
22 return 1;
23 child = child->parent;
24 } while ( child );
25 return 0;
26}
27
28void * __cfa__virtual_cast( struct __cfa__parent_vtable const * parent,
29 struct __cfa__parent_vtable const * const * child ) {
30 return (__cfa__is_parent(parent, *child)) ? (void *)child : (void *)0;
31}
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