[Bug libstdc++/81002] std::basic_regex can't be constructed from non-contiguous iterators

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81002

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Jun  7 15:43:35 2017
New Revision: 248989

URL: https://gcc.gnu.org/viewcvs?rev=248989&root=gcc&view=rev
Log:
PR libstdc++/81002 fix std::basic_regex range constructor

        PR libstdc++/81002
        * include/bits/regex.h (basic_regex): Adjust call to __compile_nfa
        so iterator type is deduced.
        * include/bits/regex_compiler.h (__compile_nfa): Reorder template
        parameters to allow iterator type to be deduced.
        * testsuite/28_regex/basic_regex/ctors/basic/iter.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/iter.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/regex.h
    trunk/libstdc++-v3/include/bits/regex_compiler.h