[Bug libstdc++/83538] std::match_results C++14 conformance issue: reference != value_type&

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83538

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Dec 27 19:43:33 2017
New Revision: 256012

URL: https://gcc.gnu.org/viewcvs?rev=256012&root=gcc&view=rev
Log:
PR libstdc++/83538 fix std::match_results<T>::reference (LWG 2306)

        PR libstdc++/83538
        * doc/xml/manual/intro.xml: Document LWG 2306 change.
        * include/bits/regex.h (match_results::reference): Change to
        non-const reference.
        * testsuite/28_regex/match_results/typedefs.cc: Check types are
        correct.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/doc/xml/manual/intro.xml
    trunk/libstdc++-v3/include/bits/regex.h
    trunk/libstdc++-v3/testsuite/28_regex/match_results/typedefs.cc