source: libcfa/src/virtual.c @ aec68b6

arm-ehjacob/cs343-translationnew-ast-unique-expr
Last change on this file since aec68b6 was ecfd758, checked in by Andrew Beach <ajbeach@…>, 6 months ago

Major exception update, seperating type-ids from virtual tables. The major interface changes are done. There is a regression of ?Cancelled(T) to Some?Cancelled. There is some bits of code for the new verion of the ?Cancelled(T) interface already there. Not connected yet but I just reached the limit of what I wanted to do in one commit and then spent over a day cleaning up, so it will replace Some?Cancelled in a future commit.

  • Property mode set to 100644
File size: 910 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#include "assert.h"
18
19int __cfa__is_parent( struct __cfa__parent_vtable const * parent,
20        struct __cfa__parent_vtable const * child ) {
21        assert( child );
22        do {
23                if ( parent == child )
24                        return 1;
25                child = child->parent;
26        } while ( child );
27        return 0;
28}
29
30void * __cfa__virtual_cast( struct __cfa__parent_vtable const * parent,
31        struct __cfa__parent_vtable const * const * child ) {
32        assert( child );
33        return (__cfa__is_parent(parent, *child)) ? (void *)child : (void *)0;
34}
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