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

[Jonathan Wakely via Gcc-patches]

Tested x86_64-linux. Pushed to trunk.

-- >8 --

libstdc++-v3/ChangeLog:

        * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
        warning for loop condition.
---
 libstdc++-v3/include/bits/list.tcc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/bits/list.tcc 
b/libstdc++-v3/include/bits/list.tcc
index 3e5b1f7b972..344386aa4d0 100644
--- a/libstdc++-v3/include/bits/list.tcc
+++ b/libstdc++-v3/include/bits/list.tcc
@@ -654,7 +654,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
            {
              // Move all nodes back into *this.
              __carry._M_put_all(end()._M_node);
-             for (int __i = 0; __i < sizeof(__tmp)/sizeof(__tmp[0]); ++__i)
+             for (size_t __i = 0; __i < sizeof(__tmp)/sizeof(__tmp[0]); ++__i)
                __tmp[__i]._M_put_all(end()._M_node);
              __throw_exception_again;
            }
-- 
2.41.0