From e660c7261f0b1323ce249f70566f3b783c67c5b6 Mon Sep 17 00:00:00 2001
From: bolero-MURAKAMI <bolero.murakami@gmail.com>
Date: Sat, 17 Dec 2011 21:43:40 +0900
Subject: [PATCH] =?UTF-8?q?basic=5Fstring=20=E3=81=AE=E6=9A=97=E9=BB=99?=
 =?UTF-8?q?=E5=A4=89=E6=8F=9B=E3=82=92=20SFINAE=20=E3=81=AB=E5=A4=89?=
 =?UTF-8?q?=E6=9B=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 sprout/string.hpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sprout/string.hpp b/sprout/string.hpp
index 6e8cb4d5..e694d5b4 100644
--- a/sprout/string.hpp
+++ b/sprout/string.hpp
@@ -507,9 +507,8 @@ namespace sprout {
 				;
 		}
 		// others:
-		template<std::size_t N2>
+		template<std::size_t N2, typename Enable = typename std::enable_if<(N2 > N)>::type>
 		SPROUT_CONSTEXPR operator basic_string<T, N2, Traits>() const {
-			static_assert(N <= N2, "basic_string<>: implicit conversion to small string");
 			return implicit_conversion_impl(
 				elems,
 				len,