GitLab

	PR libstdc++/47773
	* include/ext/vstring.h (hash<__gnu_cxx::__vstring>,
	hash<__gnu_cxx::__wvstring>, hash<__gnu_cxx::__u16vstring>,
	hash<__gnu_cxx::__u32vstring>): Add.
	* testsuite/ext/vstring/hash/char/1.cc: New.
	* testsuite/ext/vstring/hash/wchar_t/1.cc: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@170235 138bc75d-0d04-0410-961f-82ee72b054a4