diff options
Diffstat (limited to 'libcxx/include/regex')
| -rw-r--r-- | libcxx/include/regex | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libcxx/include/regex b/libcxx/include/regex index b355bbb3ac4..b2b556e5bc4 100644 --- a/libcxx/include/regex +++ b/libcxx/include/regex @@ -1733,6 +1733,8 @@ template <class _CharT> void __back_ref<_CharT>::__exec(__state& __s) const { + if (__mexp_ > __s.__sub_matches_.size()) + __throw_regex_error<regex_constants::error_backref>(); sub_match<const _CharT*>& __sm = __s.__sub_matches_[__mexp_-1]; if (__sm.matched) { |
