bug fix concerning search not at beginning of string and word boundaries git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@109750 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/regex b/include/regex index efcc7df..51ba1ea 100644 --- a/include/regex +++ b/include/regex
@@ -1907,7 +1907,8 @@ __traits_.isctype(__c, ctype_base::alnum); } } - else if (__s.__current_ == __s.__first_) + else if (__s.__current_ == __s.__first_ && + !(__s.__flags_ & regex_constants::match_prev_avail)) { if (!(__s.__flags_ & regex_constants::match_not_bow)) { @@ -5406,9 +5407,10 @@ } if (__first != __last && !(__flags & regex_constants::match_continuous)) { - __m.__matches_.assign(__m.size(), __m.__unmatched_); + __flags |= regex_constants::match_prev_avail; for (++__first; __first != __last; ++__first) { + __m.__matches_.assign(__m.size(), __m.__unmatched_); if (__match_at_start(__first, __last, __m, __flags)) { __m.__prefix_.second = __m[0].first; 