[committed] libstdc++: Initialize local variable in __gnu_cxx::rope

[Jonathan Wakely]

This avoids -Wmaybe-uninitialized warnings.

libstdc++-v3/ChangeLog:

        * include/ext/ropeimpl.h (rope::_S_fetch): Initialize variable.
---

Tested powerpc64le-linux. Pushed to trunk.

 libstdc++-v3/include/ext/ropeimpl.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/ext/ropeimpl.h 
b/libstdc++-v3/include/ext/ropeimpl.h
index 320192706ff9..00b334cb4f4e 100644
--- a/libstdc++-v3/include/ext/ropeimpl.h
+++ b/libstdc++-v3/include/ext/ropeimpl.h
@@ -1355,7 +1355,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
            case __detail::_S_substringfn:
              {
                _RopeFunction* __f = (_RopeFunction*)__r;
-               _CharT __result;
+               _CharT __result = _CharT();
 
                (*(__f->_M_fn))(__i, 1, &__result);
                return __result;
-- 
2.51.0