[Bug libstdc++/69794] [5/6 Regression] std::regex_search match failure with regex object with flags grep|icase

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69794

--- Comment #4 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Wed Feb 17 04:38:15 2016
New Revision: 233483

URL: https://gcc.gnu.org/viewcvs?rev=233483&root=gcc&view=rev
Log:
        Backport from mainline
        2016-02-16  Tim Shen  <timshen@google.com>

        PR libstdc++/69794
        * include/bits/regex_scanner.h: Add different special character
        sets for grep and egrep regex.
        * include/bits/regex_scanner.tcc: Use _M_spec_char more uniformly.
        * testsuite/28_regex/regression.cc: Add new testcase.

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