[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

--- Comment #2 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Fri Aug 28 03:03:55 2015
New Revision: 227290

URL: https://gcc.gnu.org/viewcvs?rev=227290&root=gcc&view=rev
Log:
        Backport from mainline
        2015-08-28  Tim Shen  <tims...@google.com>

        PR libstdc++/67362
        * include/bits/regex_scanner.tcc (_Scanner<>::_M_scan_normal):
        Always returns ordinary char token if the char isn't
        considered a special char.
        * testsuite/28_regex/regression.cc: New test file for collecting
        regression testcases from, typically, bugzilla.

Added:
    branches/gcc-5-branch/libstdc++-v3/testsuite/28_regex/regression.cc
Modified:
    branches/gcc-5-branch/libstdc++-v3/ChangeLog
    branches/gcc-5-branch/libstdc++-v3/include/bits/regex_scanner.tcc