[Bug libstdc++/64649] regex_traits::lookup_classname() only works with random access iterators

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64649

--- Comment #3 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Mon Jan 19 23:12:37 2015
New Revision: 219869

URL: https://gcc.gnu.org/viewcvs?rev=219869&root=gcc&view=rev
Log:
    PR libstdc++/64649
    Backported from mainline
    2015-01-19  Tim Shen  <timshen@google.com>

    * include/bits/regex.tcc (regex_traits<>::lookup_collatename,
    regex_traits<>::lookup_classname): Support forward iterators.
    * testsuite/28_regex/traits/char/lookup_classname.cc: New testcases.
    * testsuite/28_regex/traits/char/lookup_collatename.cc: New testcase.

Modified:
    branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_9-branch/libstdc++-v3/include/bits/regex.tcc
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/28_regex/traits/char/lookup_classname.cc
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/28_regex/traits/char/lookup_collatename.cc