commit 568bd0222fd14e5cd0f7b158dd020d29e372227e
author Marshall Clow <mclow.lists@gmail.com> Thu Jul 23 18:27:51 2015 +0000
committer Marshall Clow <mclow.lists@gmail.com> Thu Jul 23 18:27:51 2015 +0000
tree 87e5fa18cafacfb59579ac54750fc23e05f2a329
parent 3a59ae67834165ec18dc85563992ae58f9c38969

Detect and throw on a class of bad regexes that we mistakenly accepted before. Thanks to Trevor Smigiel for the report

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@243030 91177308-0d34-0410-b5e6-96231b3b80d8

include/regex

diff --git a/include/regex b/include/regex
index 6ac5e1d..698278c 100644
--- a/include/regex
+++ b/include/regex
@@ -4305,6 +4305,14 @@
                 }
             }
             break;
+        case '*':
+        case '+':
+        case '?':
+        case '{':
+#ifndef _LIBCPP_NO_EXCEPTIONS
+            throw regex_error(regex_constants::error_badrepeat);
+#endif
+            break;
         default:
             __first = __parse_pattern_character(__first, __last);
             break;