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authorDongHun Kwak <dh0128.kwak@samsung.com>2017-09-13 11:08:07 +0900
committerDongHun Kwak <dh0128.kwak@samsung.com>2017-09-13 11:09:00 +0900
commitb5c87084afaef42b2d058f68091be31988a6a874 (patch)
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parent34bd32e225e2a8a94104489b31c42e5801cc1f4a (diff)
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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/process/detail/traits/decl.hpp')
-rw-r--r--boost/process/detail/traits/decl.hpp76
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diff --git a/boost/process/detail/traits/decl.hpp b/boost/process/detail/traits/decl.hpp
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+// Copyright (c) 2016 Klemens D. Morgenstern
+//
+// 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_PROCESS_DETAIL_TRAITS_DECL_HPP_
+#define BOOST_PROCESS_DETAIL_TRAITS_DECL_HPP_
+
+#include <boost/process/detail/config.hpp>
+#include <boost/none.hpp>
+#include <type_traits>
+
+#if defined(BOOST_POSIX_API)
+#include <boost/process/detail/posix/handler.hpp>
+#elif defined(BOOST_WINDOWS_API)
+#include <boost/process/detail/windows/handler.hpp>
+#endif
+
+
+namespace boost { namespace process { namespace detail {
+
+
+template<typename T>
+struct is_initializer : std::is_base_of<handler_base, T> {};
+
+
+template<typename T>
+struct is_initializer<T&> : std::is_base_of<handler_base, T> {};
+
+
+template<typename T>
+struct initializer_tag;// { typedef void type; };
+
+
+//remove const
+template<typename T>
+struct initializer_tag<const T> { typedef typename initializer_tag<T>::type type; };
+
+//remove &
+template<typename T>
+struct initializer_tag<T&> { typedef typename initializer_tag<T>::type type; };
+
+//remove const &
+template<typename T>
+struct initializer_tag<const T&> { typedef typename initializer_tag<T>::type type; };
+
+template<typename T>
+struct initializer_builder;
+
+
+template<typename First, typename ...Args>
+struct valid_argument_list;
+
+template<typename First>
+struct valid_argument_list<First>
+{
+ constexpr static bool value = is_initializer<First>::value || !std::is_void<typename initializer_tag<First>::type>::value;
+ typedef std::integral_constant<bool, value> type;
+};
+
+template<typename First, typename ...Args>
+struct valid_argument_list
+{
+ constexpr static bool my_value = is_initializer<First>::value || !std::is_void<typename initializer_tag<First>::type>::value;
+ constexpr static bool value = valid_argument_list<Args...>::value && my_value;
+ typedef std::integral_constant<bool, value> type;
+};
+
+
+
+}}}
+
+
+
+#endif /* BOOST_PROCESS_DETAIL_HANDLER_HPP_ */