add C++14 version is_signed, is_unsigned

sprout/algorithm/detail/max.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/detail/min.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/equal_range.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/find_symmetric_difference.hpp

@@ -55,7 +55,7 @@ namespace sprout {
 			InputIterator1 last1, InputIterator2 last2, Compare comp, typename std::iterator_traits<InputIterator1>::difference_type n
 			)
 		{
-			return sprout::tuples::get<2>(current) || sprout::tuples::get<0>(current) == last1 || sprout::tuples::get<1>(current) == last2 ? current
+			return sprout::tuples::get<2>(current) || sprout::tuples::get<0>(current) == last1 ? current
 				: sprout::detail::find_symmetric_difference_impl(
 					sprout::detail::find_symmetric_difference_impl_1(
 						current,

sprout/algorithm/is_heap.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/is_sorted.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/lower_bound.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/max.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/min.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/minmax.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/partition_point.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/algorithm/upper_bound.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/bit/popcount.hpp

@@ -10,6 +10,7 @@
 
 #include <type_traits>
 #include <sprout/config.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace detail {
@@ -29,7 +30,7 @@ namespace sprout {
 #	endif
 		template<typename T>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_unsigned<T>::value,
+			sprout::is_unsigned<T>::value,
 			int
 		>::type
 		popcount(T n) {
@@ -39,7 +40,7 @@ namespace sprout {
 		}
 		template<typename T>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_signed<T>::value,
+			sprout::is_signed<T>::value,
 			int
 		>::type
 		popcount(T n) {

sprout/cstdlib/abs.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying
@@ -11,6 +13,7 @@
 
 #include <type_traits>
 #include <sprout/config.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 
@@ -43,7 +46,7 @@ namespace sprout {
 	namespace {
 		template<typename IntType>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_integral<IntType>::value && std::is_signed<IntType>::value,
+			std::is_integral<IntType>::value && sprout::is_signed<IntType>::value,
 			IntType
 		>::type
 		abs(IntType j) {
@@ -52,7 +55,7 @@ namespace sprout {
 
 		template<typename IntType>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_integral<IntType>::value && std::is_unsigned<IntType>::value,
+			std::is_integral<IntType>::value && sprout::is_unsigned<IntType>::value,
 			IntType
 		>::type
 		abs(IntType j) {

sprout/cstdlib/ascii_to_int.hpp

@@ -12,6 +12,7 @@
 #include <type_traits>
 #include <sprout/config.hpp>
 #include <sprout/limits.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 #include <sprout/iterator/operation.hpp>
 #include <sprout/ctype/ascii.hpp>
 #include <sprout/detail/char_literal.hpp>
@@ -39,7 +40,7 @@ namespace sprout {
 		}
 		template<typename IntType, typename NullTerminatedIterator>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_unsigned<IntType>::value,
+			sprout::is_unsigned<IntType>::value,
 			IntType
 		>::type
 		ascii_to_int(NullTerminatedIterator str) {
@@ -53,7 +54,7 @@ namespace sprout {
 		}
 		template<typename IntType, typename NullTerminatedIterator>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_signed<IntType>::value,
+			sprout::is_signed<IntType>::value,
 			IntType
 		>::type
 		ascii_to_int(NullTerminatedIterator str) {

sprout/cstdlib/div.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/cstdlib/str_to_int.hpp

@@ -13,6 +13,7 @@
 #include <sprout/config.hpp>
 #include <sprout/workaround/std/cstddef.hpp>
 #include <sprout/limits.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 #include <sprout/iterator/operation.hpp>
 #include <sprout/ctype/ascii.hpp>
 #include <sprout/detail/char_literal.hpp>
@@ -72,7 +73,7 @@ namespace sprout {
 		}
 		template<typename IntType, typename NullTerminatedIterator>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_unsigned<IntType>::value,
+			sprout::is_unsigned<IntType>::value,
 			IntType
 		>::type
 		str_to_int(NullTerminatedIterator str, int base) {
@@ -86,7 +87,7 @@ namespace sprout {
 		}
 		template<typename IntType, typename NullTerminatedIterator>
 		inline SPROUT_CONSTEXPR typename std::enable_if<
-			std::is_signed<IntType>::value,
+			sprout::is_signed<IntType>::value,
 			IntType
 		>::type
 		str_to_int(NullTerminatedIterator str, int base) {
@@ -105,11 +106,11 @@ namespace sprout {
 		str_to_int(NullTerminatedIterator str, CharPtr* endptr, int base) {
 			return !endptr ? sprout::detail::str_to_int<IntType>(str, base)
 #if defined(_MSC_VER)
-				: std::is_signed<IntType>::value
+				: sprout::is_signed<IntType>::value
 					? static_cast<IntType>(std::strtol(&*str, endptr, base))
 					: static_cast<IntType>(std::strtoul(&*str, endptr, base))
 #elif defined(__MINGW32__)
-				: std::is_signed<IntType>::value
+				: sprout::is_signed<IntType>::value
 					? sizeof(IntType) <= sizeof(long) ? static_cast<IntType>(std::strtol(&*str, endptr, base))
 						: sizeof(IntType) <= sizeof(long long) ? static_cast<IntType>(::strtoll(&*str, endptr, base))
 						: static_cast<IntType>(std::strtoimax(&*str, endptr, base))
@@ -117,7 +118,7 @@ namespace sprout {
 						: sizeof(IntType) <= sizeof(unsigned long long) ? static_cast<IntType>(::strtoull(&*str, endptr, base))
 						: static_cast<IntType>(std::strtoumax(&*str, endptr, base))
 #else
-				: std::is_signed<IntType>::value
+				: sprout::is_signed<IntType>::value
 					? sizeof(IntType) <= sizeof(long) ? static_cast<IntType>(std::strtol(&*str, endptr, base))
 						: sizeof(IntType) <= sizeof(long long) ? static_cast<IntType>(std::strtoll(&*str, endptr, base))
 						: static_cast<IntType>(std::strtoimax(&*str, endptr, base))

sprout/ctype/ascii.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/bind1st.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/bind2nd.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/divides.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/equal_to.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/greater.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/greater_equal.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/hash/hash_value_traits.hpp

@@ -15,7 +15,7 @@
 #include <sprout/limits.hpp>
 #include <sprout/functional/hash/hash_fwd.hpp>
 #include <sprout/functional/hash/detail/hash_float.hpp>
-#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace hash_detail {
@@ -31,7 +31,7 @@ namespace sprout {
 			: public sprout::bool_constant<
 				std::is_integral<T>::value
 					&& (sizeof(T) > sizeof(std::size_t))
-					&& std::is_signed<T>::value
+					&& sprout::is_signed<T>::value
 			>
 		{};
 		template<typename T>
@@ -39,7 +39,7 @@ namespace sprout {
 			: public sprout::bool_constant<
 				std::is_integral<T>::value
 					&& (sizeof(T) > sizeof(std::size_t))
-					&& std::is_unsigned<T>::value
+					&& sprout::is_unsigned<T>::value
 			>
 		{};
 

sprout/functional/less.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/less_equal.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/minus.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/modulus.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/multiplies.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/negate.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/not_equal_to.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/plus.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/functional/posite.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/integer/integer_digits.hpp

@@ -12,7 +12,7 @@
 #include <type_traits>
 #include <sprout/config.hpp>
 #include <sprout/workaround/std/cstddef.hpp>
-#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace detail {
@@ -20,8 +20,8 @@ namespace sprout {
 		struct integer_digits_impl
 			: public sprout::integral_constant<
 				std::size_t,
-				(CHAR_BIT * sizeof(IntType) - (std::is_signed<IntType>::value ? 1 : 0)) * N / D
+				(CHAR_BIT * sizeof(IntType) - (sprout::is_signed<IntType>::value ? 1 : 0)) * N / D
-				+ ((CHAR_BIT * sizeof(IntType) - (std::is_signed<IntType>::value ? 1 : 0)) * N % D ? 1 : 0)
+				+ ((CHAR_BIT * sizeof(IntType) - (sprout::is_signed<IntType>::value ? 1 : 0)) * N % D ? 1 : 0)
 			>
 		{};
 	}	// namespace detail

sprout/math/constant_variables.hpp

@@ -1,6 +1,6 @@
 /*=============================================================================
-  Copyright (c) 2015 fimbul
+  Copyright (c) 2011-2015 Bolero MURAKAMI
-  https://github.com/fimbul
+  https://github.com/bolero-MURAKAMI/Sprout
 
   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)

sprout/math/greater.hpp

@@ -13,6 +13,7 @@
 #include <sprout/math/not_equal_to.hpp>
 #include <sprout/type_traits/arithmetic_promote.hpp>
 #include <sprout/type_traits/enabler_if.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace math {
@@ -32,7 +33,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& (std::is_unsigned<IntType1>::value == std::is_unsigned<IntType2>::value)
+					&& (sprout::is_unsigned<IntType1>::value == sprout::is_unsigned<IntType2>::value)
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -43,7 +44,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_signed<IntType1>::value && std::is_unsigned<IntType2>::value
+					&& sprout::is_signed<IntType1>::value && sprout::is_unsigned<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -57,7 +58,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_unsigned<IntType1>::value && std::is_signed<IntType2>::value
+					&& sprout::is_unsigned<IntType1>::value && sprout::is_signed<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool

sprout/math/greater_equal.hpp

@@ -13,6 +13,7 @@
 #include <sprout/math/equal_to.hpp>
 #include <sprout/type_traits/arithmetic_promote.hpp>
 #include <sprout/type_traits/enabler_if.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace math {
@@ -32,7 +33,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& (std::is_unsigned<IntType1>::value == std::is_unsigned<IntType2>::value)
+					&& (sprout::is_unsigned<IntType1>::value == sprout::is_unsigned<IntType2>::value)
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -43,7 +44,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_signed<IntType1>::value && std::is_unsigned<IntType2>::value
+					&& sprout::is_signed<IntType1>::value && sprout::is_unsigned<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -57,7 +58,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_unsigned<IntType1>::value && std::is_signed<IntType2>::value
+					&& sprout::is_unsigned<IntType1>::value && sprout::is_signed<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool

sprout/math/less.hpp

@@ -13,6 +13,7 @@
 #include <sprout/math/not_equal_to.hpp>
 #include <sprout/type_traits/arithmetic_promote.hpp>
 #include <sprout/type_traits/enabler_if.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace math {
@@ -32,7 +33,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& (std::is_unsigned<IntType1>::value == std::is_unsigned<IntType2>::value)
+					&& (sprout::is_unsigned<IntType1>::value == sprout::is_unsigned<IntType2>::value)
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -43,7 +44,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_signed<IntType1>::value && std::is_unsigned<IntType2>::value
+					&& sprout::is_signed<IntType1>::value && sprout::is_unsigned<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -57,7 +58,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_unsigned<IntType1>::value && std::is_signed<IntType2>::value
+					&& sprout::is_unsigned<IntType1>::value && sprout::is_signed<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool

sprout/math/less_equal.hpp

@@ -13,6 +13,7 @@
 #include <sprout/math/equal_to.hpp>
 #include <sprout/type_traits/arithmetic_promote.hpp>
 #include <sprout/type_traits/enabler_if.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	namespace math {
@@ -32,7 +33,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& (std::is_unsigned<IntType1>::value == std::is_unsigned<IntType2>::value)
+					&& (sprout::is_unsigned<IntType1>::value == sprout::is_unsigned<IntType2>::value)
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -43,7 +44,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_signed<IntType1>::value && std::is_unsigned<IntType2>::value
+					&& sprout::is_signed<IntType1>::value && sprout::is_unsigned<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool
@@ -57,7 +58,7 @@ namespace sprout {
 				typename IntType1, typename IntType2,
 				typename sprout::enabler_if<
 					std::is_integral<typename sprout::arithmetic_promote<IntType1, IntType2>::type>::value
-					&& std::is_unsigned<IntType1>::value && std::is_signed<IntType2>::value
+					&& sprout::is_unsigned<IntType1>::value && sprout::is_signed<IntType2>::value
 				>::type = sprout::enabler
 			>
 			inline SPROUT_CONSTEXPR bool

sprout/random/uniform_int_distribution.hpp

@@ -18,9 +18,6 @@
 #include <sprout/random/random_result.hpp>
 #include <sprout/random/results.hpp>
 #include <sprout/assert.hpp>
-#ifdef SPROUT_WORKAROUND_NOT_TERMINATE_RECURSIVE_CONSTEXPR_FUNCTION_TEMPLATE
-#	include <sprout/workaround/recursive_function_template.hpp>
-#endif
 
 namespace sprout {
 	namespace random {

sprout/random/uniform_real_distribution.hpp

@@ -16,9 +16,6 @@
 #include <sprout/random/random_result.hpp>
 #include <sprout/random/results.hpp>
 #include <sprout/assert.hpp>
-#ifdef SPROUT_WORKAROUND_NOT_TERMINATE_RECURSIVE_CONSTEXPR_FUNCTION_TEMPLATE
-#	include <sprout/workaround/recursive_function_template.hpp>
-#endif
 
 namespace sprout {
 	namespace random {

sprout/range/algorithm/adjacent_find.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/all_of.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/any_of.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/binary_search.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/count.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/count_if.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/equal.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/equal_range.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/find.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/find_end.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/find_first_of.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/find_if.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/find_if_not.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/includes.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_heap.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_heap_until.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_partitioned.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_permutation.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_sorted.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/is_sorted_until.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/lexicographical_compare.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/lower_bound.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/max_element.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/min_element.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/minmax_element.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/mismatch.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/none_of.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/partition_point.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/search.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/search_n.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/range/algorithm/upper_bound.hpp

@@ -1,6 +1,8 @@
 /*=============================================================================
+  Copyright (c) 2011 RiSK (sscrisk)
+  https://github.com/sscrisk/CEL---ConstExpr-Library
+
   Copyright (c) 2011-2015 Bolero MURAKAMI
-  Copyright (C) 2011 RiSK (sscrisk)
   https://github.com/bolero-MURAKAMI/Sprout
 
   Distributed under the Boost Software License, Version 1.0. (See accompanying

sprout/string/int_to_string.hpp

@@ -14,8 +14,8 @@
 #include <sprout/index_tuple/metafunction.hpp>
 #include <sprout/string/string.hpp>
 #include <sprout/integer/integer_digits.hpp>
-#include <sprout/type_traits/integral_constant.hpp>
 #include <sprout/type_traits/enabler_if.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 #include <sprout/detail/char_literal.hpp>
 #include <sprout/detail/char_conversion.hpp>
 #include <sprout/detail/math/int.hpp>
@@ -28,7 +28,7 @@ namespace sprout {
 	struct printed_integer_digits
 		: public sprout::integral_constant<
 			std::size_t,
-			sprout::integer_digits<IntType, Base>::value + (std::is_signed<IntType>::value ? 1 : 0)
+			sprout::integer_digits<IntType, Base>::value + (sprout::is_signed<IntType>::value ? 1 : 0)
 		>
 	{};
 
@@ -36,7 +36,7 @@ namespace sprout {
 		template<
 			typename Elem, int Base, typename IntType,
 			sprout::index_t... Indexes,
-			typename sprout::enabler_if<std::is_signed<IntType>::value>::type = sprout::enabler
+			typename sprout::enabler_if<sprout::is_signed<IntType>::value>::type = sprout::enabler
 		>
 		inline SPROUT_CONSTEXPR sprout::basic_string<Elem, sprout::printed_integer_digits<IntType, Base>::value>
 		int_to_string(IntType val, int digits, sprout::index_tuple<Indexes...>) {
@@ -59,7 +59,7 @@ namespace sprout {
 		template<
 			typename Elem, int Base, typename IntType,
 			sprout::index_t... Indexes,
-			typename sprout::enabler_if<std::is_unsigned<IntType>::value>::type = sprout::enabler
+			typename sprout::enabler_if<sprout::is_unsigned<IntType>::value>::type = sprout::enabler
 		>
 		inline SPROUT_CONSTEXPR sprout::basic_string<Elem, sprout::printed_integer_digits<IntType, Base>::value>
 		int_to_string(IntType val, int digits, sprout::index_tuple<Indexes...>) {

sprout/type_traits/is_signed.hpp

@@ -0,0 +1,36 @@
+/*=============================================================================
+  Copyright (c) 2011-2015 Bolero MURAKAMI
+  https://github.com/bolero-MURAKAMI/Sprout
+
+  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 SPROUT_TYPE_TRAITS_IS_SIGNED_HPP
+#define SPROUT_TYPE_TRAITS_IS_SIGNED_HPP
+
+#include <type_traits>
+#include <sprout/config.hpp>
+#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/detail/type_traits_wrapper.hpp>
+
+namespace sprout {
+	//
+	// is_signed
+	//
+	namespace detail {
+		template<typename T, bool = std::is_arithmetic<T>::value>
+		struct is_signed_impl
+			: public sprout::false_type
+		{};
+		template<typename T>
+		struct is_signed_impl<T, true>
+			: public sprout::detail::type_traits_wrapper<std::is_signed<T> >
+		{};
+	}	// namespace detail
+	template <typename T>
+	struct is_signed
+		: public sprout::detail::is_signed_impl<T>
+	{};
+}	// namespace sprout
+
+#endif	// #ifndef SPROUT_TYPE_TRAITS_IS_SIGNED_HPP

sprout/type_traits/is_sint.hpp

@@ -10,7 +10,7 @@
 
 #include <type_traits>
 #include <sprout/config.hpp>
-#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	//
@@ -19,7 +19,7 @@ namespace sprout {
 	template<typename T>
 	struct is_sint
 		: public sprout::bool_constant<
-			std::is_integral<T>::value && std::is_signed<T>::value
+			std::is_integral<T>::value && sprout::is_signed<T>::value
 		>
 	{};
 

sprout/type_traits/is_uint.hpp

@@ -10,7 +10,7 @@
 
 #include <type_traits>
 #include <sprout/config.hpp>
-#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/std_type_traits.hpp>
 
 namespace sprout {
 	//
@@ -19,7 +19,7 @@ namespace sprout {
 	template<typename T>
 	struct is_uint
 		: public sprout::bool_constant<
-			std::is_integral<T>::value && std::is_unsigned<T>::value
+			std::is_integral<T>::value && sprout::is_unsigned<T>::value
 		>
 	{};
 

sprout/type_traits/is_unsigned.hpp

@@ -0,0 +1,36 @@
+/*=============================================================================
+  Copyright (c) 2011-2015 Bolero MURAKAMI
+  https://github.com/bolero-MURAKAMI/Sprout
+
+  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 SPROUT_TYPE_TRAITS_IS_UNSIGNED_HPP
+#define SPROUT_TYPE_TRAITS_IS_UNSIGNED_HPP
+
+#include <type_traits>
+#include <sprout/config.hpp>
+#include <sprout/type_traits/integral_constant.hpp>
+#include <sprout/type_traits/detail/type_traits_wrapper.hpp>
+
+namespace sprout {
+	//
+	// is_unsigned
+	//
+	namespace detail {
+		template<typename T, bool = std::is_arithmetic<T>::value>
+		struct is_unsigned_impl
+			: public sprout::false_type
+		{};
+		template<typename T>
+		struct is_unsigned_impl<T, true>
+			: public sprout::detail::type_traits_wrapper<std::is_unsigned<T> >
+		{};
+	}	// namespace detail
+	template <typename T>
+	struct is_unsigned
+		: public sprout::detail::is_unsigned_impl<T>
+	{};
+}	// namespace sprout
+
+#endif	// #ifndef SPROUT_TYPE_TRAITS_IS_UNSIGNED_HPP

sprout/type_traits/std_type_traits.hpp

@@ -15,6 +15,8 @@
 #include <sprout/type_traits/integral_constant.hpp>
 #include <sprout/type_traits/common_type.hpp>
 #include <sprout/type_traits/is_null_pointer.hpp>
+#include <sprout/type_traits/is_signed.hpp>
+#include <sprout/type_traits/is_unsigned.hpp>
 #include <sprout/type_traits/detail/type_traits_wrapper.hpp>
 #if !defined(_LIBCPP_VERSION) || (_LIBCPP_VERSION < 1101)
 #	include <sprout/tpp/algorithm/max_element.hpp>
@@ -157,14 +159,14 @@ namespace sprout {
 	struct is_abstract
 		: public sprout::detail::type_traits_wrapper<std::is_abstract<T> >
 	{};
-	template<typename T>
+//	template<typename T>
-	struct is_signed
+//	struct is_signed
-		: public sprout::detail::type_traits_wrapper<std::is_signed<T> >
+//		: public sprout::detail::type_traits_wrapper<std::is_signed<T> >
-	{};
+//	{};
-	template<typename T>
+//	template<typename T>
-	struct is_unsigned
+//	struct is_unsigned
-		: public sprout::detail::type_traits_wrapper<std::is_unsigned<T> >
+//		: public sprout::detail::type_traits_wrapper<std::is_unsigned<T> >
-	{};
+//	{};
 	template<typename T, typename... Args>
 	struct is_constructible
 		: public sprout::detail::type_traits_wrapper<std::is_constructible<T, Args...> >