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Diffstat (limited to 'boost/type_traits/is_detected_exact.hpp')
| -rw-r--r-- | boost/type_traits/is_detected_exact.hpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/boost/type_traits/is_detected_exact.hpp b/boost/type_traits/is_detected_exact.hpp new file mode 100644 index 0000000000..1a9b04555f --- /dev/null +++ b/boost/type_traits/is_detected_exact.hpp @@ -0,0 +1,29 @@ +/* +Copyright 2017-2018 Glen Joseph Fernandes +<glenjofe -at- gmail.com> + +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) +*/ + +#ifndef BOOST_TT_IS_DETECTED_EXACT_HPP_INCLUDED +#define BOOST_TT_IS_DETECTED_EXACT_HPP_INCLUDED + +#include <boost/type_traits/detected.hpp> +#include <boost/type_traits/is_same.hpp> + +namespace boost { + +template<class Expected, template<class...> class Op, class... Args> +using is_detected_exact = is_same<Expected, detected_t<Op, Args...> >; + +#if !defined(BOOST_NO_CXX14_VARIABLE_TEMPLATES) +template<class Expected, template<class...> class Op, class... Args> +constexpr bool is_detected_exact_v = is_detected_exact<Expected, Op, + Args...>::value; +#endif + +} /* boost */ + +#endif |