[Bug libstdc++/64441] A match_results returns an incorrect sub_match if the sub_match::matched is false

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64441

--- Comment #1 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Wed Dec 31 10:27:41 2014
New Revision: 219121

URL: https://gcc.gnu.org/viewcvs?rev=219121&root=gcc&view=rev
Log:
    PR libstdc++/64441
    * include/bits/regex.tcc (__regex_algo_impl): s/auto/auto&/.
    * include/bits/regex_executor.tcc (_Executor<>::_M_dfs): Likewise.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/regex.tcc
    trunk/libstdc++-v3/include/bits/regex_executor.tcc