Use traits_type::to_int_type in basic_streambuf<_CharT, _Traits>::xsputn when calling overflow to correctly handle negative signed character types. This fixes http://llvm.org/bugs/show_bug.cgi?id=14074. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@165884 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/streambuf b/include/streambuf index e128be5..e34ad23 100644 --- a/include/streambuf +++ b/include/streambuf 
@@ -540,7 +540,7 @@  {  if (__nout_ < __eout_)  *__nout_++ = *__s; - else if (overflow(*__s) == __eof) + else if (overflow(traits_type::to_int_type(*__s)) == __eof)  break;  }  return __i;