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[Bug libstdc++/64140] match_results.prefix() returns an incorrect result if regex_iterator holds a zero-length match
- From: "timshen at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Dec 2014 04:25:46 +0000
- Subject: [Bug libstdc++/64140] match_results.prefix() returns an incorrect result if regex_iterator holds a zero-length match
- Auto-submitted: auto-generated
- References: <bug-64140-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64140
--- Comment #1 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Thu Dec 4 04:25:12 2014
New Revision: 218340
URL: https://gcc.gnu.org/viewcvs?rev=218340&root=gcc&view=rev
Log:
PR libstdc++/64140
* include/bits/regex.tcc (regex_iterator<>::operator++): Update
prefix.matched after modifying prefix.first.
* testsuite/28_regex/iterators/regex_iterator/char/64140.cc: New
testcase.
Added:
trunk/libstdc++-v3/testsuite/28_regex/iterators/regex_iterator/char/64140.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/regex.tcc