2013-07-21  Tim Shen  <timshen91@gmail.com>

	Partially implement regex_search.
	* include/bits/regex.h: regex_search.
	* include/bits/regex_grep_matcher.h: _M_search_from_first.
	* include/bits/regex_grep_matcher.tcc: Implement it.
	* testsuite/28_regex/algorithms/regex_search/basic/string_01.cc: New.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201113 138bc75d-0d04-0410-961f-82ee72b054a4
Daily bump.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@201116 138bc75d-0d04-0410-961f-82ee72b054a4