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Diffstat (limited to '3rdParty/Boost/src/boost/parameter/aux_/yesno.hpp')
-rwxr-xr-x | 3rdParty/Boost/src/boost/parameter/aux_/yesno.hpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/parameter/aux_/yesno.hpp b/3rdParty/Boost/src/boost/parameter/aux_/yesno.hpp new file mode 100755 index 0000000..13fa545 --- /dev/null +++ b/3rdParty/Boost/src/boost/parameter/aux_/yesno.hpp @@ -0,0 +1,26 @@ +// Copyright Daniel Wallin, David Abrahams 2005. Use, modification and +// distribution is subject to 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) + +#ifndef YESNO_050328_HPP +#define YESNO_050328_HPP + +#include <boost/mpl/bool.hpp> + +namespace boost { namespace parameter { namespace aux { + +// types used with the "sizeof trick" to capture the results of +// overload resolution at compile-time. +typedef char yes_tag; +typedef char (&no_tag)[2]; + +// mpl::true_ and mpl::false_ are not distinguishable by sizeof(), +// so we pass them through these functions to get a type that is. +yes_tag to_yesno(mpl::true_); +no_tag to_yesno(mpl::false_); + +}}} // namespace boost::parameter::aux + +#endif // YESNO_050328_HPP + |