[Bug libstdc++/66059] make_integer_sequence should use a log(N) implementation

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66059

--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed May 17 17:18:07 2017
New Revision: 248163

URL: https://gcc.gnu.org/viewcvs?rev=248163&root=gcc&view=rev
Log:
PR libstdc++/66059 optimise _Build_index_tuple

Backport from mainline
2015-11-17  Jonathan Wakely  <jwakely@redhat.com>

        PR libstdc++/66059
        * include/std/utility (_Build_index_tuple): Optimise.

Modified:
    branches/gcc-5-branch/libstdc++-v3/ChangeLog
    branches/gcc-5-branch/libstdc++-v3/include/std/utility