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

[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