* src/strstream.cc (strstreambuf::overflow): Make sure operands of

min and max have the same type.
* include/bits/basic_string.tcc (append, rfind, compare): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63802 138bc75d-0d04-0410-961f-82ee72b054a4