From 686d1bf67aa5716945035fd27f65f56d15d43035 Mon Sep 17 00:00:00 2001
From: bolero-MURAKAMI <bolero.murakami@gmail.com>
Date: Mon, 16 Apr 2012 12:00:20 +0900
Subject: [PATCH] fix str_to_float SFINAE

---
 sprout/cstdlib/str_to_float.hpp | 7 ++++---
 sprout/cstdlib/str_to_int.hpp   | 1 +
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/sprout/cstdlib/str_to_float.hpp b/sprout/cstdlib/str_to_float.hpp
index 6a554fb6..a0fc7e14 100644
--- a/sprout/cstdlib/str_to_float.hpp
+++ b/sprout/cstdlib/str_to_float.hpp
@@ -5,6 +5,7 @@
 #include <cstdlib>
 #include <cmath>
 #include <limits>
+#include <type_traits>
 #include <sprout/config.hpp>
 #include <sprout/iterator/operation.hpp>
 #include <sprout/ctype/ascii.hpp>
@@ -238,15 +239,15 @@ namespace sprout {
 	//
 	// str_to_float
 	//
-	template<typename FloatType, typename Char>
+	template<typename FloatType, typename Char, typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler>
 	inline SPROUT_CONSTEXPR FloatType str_to_float(Char const* str, Char** endptr) {
 		return sprout::detail::str_to_float<FloatType>(str, endptr);
 	}
-	template<typename FloatType, typename Char>
+	template<typename FloatType, typename Char, typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler>
 	inline SPROUT_CONSTEXPR FloatType str_to_float(Char const* str, std::nullptr_t endptr) {
 		return sprout::detail::str_to_float<FloatType>(str);
 	}
-	template<typename FloatType, typename Char>
+	template<typename FloatType, typename Char, typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler>
 	inline SPROUT_CONSTEXPR FloatType str_to_float(Char const* str) {
 		return sprout::detail::str_to_float<FloatType>(str);
 	}
diff --git a/sprout/cstdlib/str_to_int.hpp b/sprout/cstdlib/str_to_int.hpp
index 5bf05d02..9f17c4ae 100644
--- a/sprout/cstdlib/str_to_int.hpp
+++ b/sprout/cstdlib/str_to_int.hpp
@@ -4,6 +4,7 @@
 #include <cstddef>
 #include <cstdlib>
 #include <limits>
+#include <type_traits>
 #include <sprout/config.hpp>
 #include <sprout/iterator/operation.hpp>
 #include <sprout/ctype/ascii.hpp>