[committed] libstdc++: Fix -Wsign-compare warning in <regex>

[Jonathan Wakely]

libstdc++-v3/ChangeLog:

	* include/bits/regex.tcc: Fix -Wsign-compare warning.
---

Tested x86_64-linux. Pushed to trunk.

 libstdc++-v3/include/bits/regex.tcc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/bits/regex.tcc b/libstdc++-v3/include/bits/regex.tcc
index 5cf217ef777..5d2584e9d6d 100644
--- a/libstdc++-v3/include/bits/regex.tcc
+++ b/libstdc++-v3/include/bits/regex.tcc
@@ -444,7 +444,7 @@ namespace __detail
 		      __num *= 10;
 		      __num += __traits.value(*__next++, 10);
 		    }
-		  if (0 <= __num && __num < this->size())
+		  if (0 <= __num && size_t(__num) < this->size())
 		    __output(__num);
 		}
 	      else
-- 
2.47.1