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Diffstat (limited to 'indexlib/boost-compat/checked_delete.h')
-rw-r--r-- | indexlib/boost-compat/checked_delete.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/indexlib/boost-compat/checked_delete.h b/indexlib/boost-compat/checked_delete.h new file mode 100644 index 000000000..db740fcb1 --- /dev/null +++ b/indexlib/boost-compat/checked_delete.h @@ -0,0 +1,69 @@ +#ifndef BOOST_CHECKED_DELETE_H_INCLUDED +#define BOOST_CHECKED_DELETE_H_INCLUDED + +// MS compatible compilers support #pragma once + +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma once +#endif + +// +// boost/checked_delete.hpp +// +// Copyright (c) 2002, 2003 Peter Dimov +// Copyright (c) 2003 Daniel Frey +// Copyright (c) 2003 Howard Hinnant +// +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/utility/checked_delete.html for documentation. +// + +namespace boost +{ + +// verify that types are complete for increased safety + +template<class T> inline void checked_delete(T * x) +{ + // intentionally complex - simplification causes regressions + typedef char type_must_be_complete[ sizeof(T)? 1: -1 ]; + (void) sizeof(type_must_be_complete); + delete x; +} + +template<class T> inline void checked_array_delete(T * x) +{ + typedef char type_must_be_complete[ sizeof(T)? 1: -1 ]; + (void) sizeof(type_must_be_complete); + delete [] x; +} + +template<class T> struct checked_deleter +{ + typedef void result_type; + typedef T * argument_type; + + void operator()(T * x) const + { + // boost:: disables ADL + boost::checked_delete(x); + } +}; + +template<class T> struct checked_array_deleter +{ + typedef void result_type; + typedef T * argument_type; + + void operator()(T * x) const + { + boost::checked_array_delete(x); + } +}; + +} // namespace boost + +#endif // #ifndef BOOST_CHECKED_DELETE_H_INCLUDED |