commit faa964de5d9a6403169615e65ac4614ee1f50f92
author Marshall Clow <mclow.lists@gmail.com> Wed Jul 05 16:37:19 2017 +0000
committer Marshall Clow <mclow.lists@gmail.com> Wed Jul 05 16:37:19 2017 +0000
tree 30d9157868a3b55de0e3fa1b81dc20f8abc1fba6
parent b908bc6beb7a3ad35b9644c8f638596c1feb0939

Fix a bug in regex_Iterator where it would report zero-length matches forever. Reported as http://llvm.org/PR33681. Thanks to Karen Arutyunov for the report.

llvm-svn: 307171
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 52f4f72fa95ac0e3baf21be658a4005f265358c7

include/regex

diff --git a/include/regex b/include/regex
index 443c2e3..77ca648 100644
--- a/include/regex
+++ b/include/regex
@@ -6142,7 +6142,7 @@
 {
     __flags_ |= regex_constants::__no_update_pos;
     _BidirectionalIterator __start = __match_[0].second;
-    if (__match_.empty())
+    if (__match_[0].first == __match_[0].second)
     {
         if (__start == __end_)
         {