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author | DongHun Kwak <dh0128.kwak@samsung.com> | 2017-09-13 11:08:07 +0900 |
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committer | DongHun Kwak <dh0128.kwak@samsung.com> | 2017-09-13 11:09:00 +0900 |
commit | b5c87084afaef42b2d058f68091be31988a6a874 (patch) | |
tree | adef9a65870a41181687e11d57fdf98e7629de3c /boost/type_traits/make_void.hpp | |
parent | 34bd32e225e2a8a94104489b31c42e5801cc1f4a (diff) | |
download | boost-b5c87084afaef42b2d058f68091be31988a6a874.tar.gz boost-b5c87084afaef42b2d058f68091be31988a6a874.tar.bz2 boost-b5c87084afaef42b2d058f68091be31988a6a874.zip |
Imported Upstream version 1.64.0upstream/1.64.0
Change-Id: Id9212edd016dd55f21172c427aa7894d1d24148b
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>
Diffstat (limited to 'boost/type_traits/make_void.hpp')
-rw-r--r-- | boost/type_traits/make_void.hpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/boost/type_traits/make_void.hpp b/boost/type_traits/make_void.hpp new file mode 100644 index 0000000000..f48823b059 --- /dev/null +++ b/boost/type_traits/make_void.hpp @@ -0,0 +1,52 @@ +/* +Copyright 2017 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_MAKE_VOID_HPP_INCLUDED +#define BOOST_TT_MAKE_VOID_HPP_INCLUDED + +#include <boost/config.hpp> + +namespace boost { + +#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) +template<class...> +struct make_void { + typedef void type; +}; + +#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) +template<class... Ts> +using void_t = typename make_void<Ts...>::type; +#endif + +#else /* BOOST_NO_CXX11_VARIADIC_TEMPLATES */ + +template<class = void, + class = void, + class = void, + class = void, + class = void> +struct make_void { + typedef void type; +}; + +#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) +template<class A = void, + class B = void, + class C = void, + class D = void, + class E = void> +using void_t = typename make_void<A, B, C, D, E>::type; +#endif + +#endif + +} /* boost */ + +#endif |