source: libcfa/src/virtual.c @ 1076d05

//
// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// virtual.c --
//
// Author           : Andrew Beach
// Created On       : Tus Jul 11 15:10:00 2017
// Last Modified By : Andrew Beach
// Last Modified On : Wed Jul 26 14:24:00 2017
// Update Count     : 1
//

#include "virtual.h"

int __cfa__is_parent( struct __cfa__parent_vtable const * parent,
        struct __cfa__parent_vtable const * child ) {
        do {
                if ( parent == child )
                        return 1;
                child = child->parent;
        } while ( child );
        return 0;
}

void * __cfa__virtual_cast( struct __cfa__parent_vtable const * parent,
        struct __cfa__parent_vtable const * const * child ) {
        return (__cfa__is_parent(parent, *child)) ? (void *)child : (void *)0;
}