hash.h revision 66f63cae4e41c6b62ce6657bfc7cd9c8309836ef
/** @file
* Hash function for various things
*/
/* Authors:
* Krzysztof Kosiński <tweenk.pl@gmail.com>
*
* Copyright (C) 2009 Authors
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifndef SEEN_UTIL_HASH_H
#define SEEN_UTIL_HASH_H
#include <boost/shared_ptr.hpp>
namespace std {
namespace tr1 {
/** Hash function for Boost shared pointers */
template <typename T>
struct hash< boost::shared_ptr<T> > : public std::unary_function<boost::shared_ptr<T>, size_t> {
size_t operator()(boost::shared_ptr<T> p) const {
return reinterpret_cast<size_t>(p.get());
}
};
} // namespace tr1
} // namespace std
#endif
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :