Protect optional's deduction guide with the feature macro
authorVille Voutilainen <ville.voutilainen@gmail.com>
Wed, 3 Jan 2018 20:33:10 +0000 (22:33 +0200)
committerVille Voutilainen <ville@gcc.gnu.org>
Wed, 3 Jan 2018 20:33:10 +0000 (22:33 +0200)
commit8bdbeed1d0b00bc21a105712b1b672ebec37358e
treee6ef39cbfcabdd637ea6422f235e8a6e8efc39eb
parent72df5daa5cffef2fb58bcf5cfd2d35f1bf923156
Protect optional's deduction guide with the feature macro

* include/std/optional: Use the feature macro.

From-SVN: r256185
libstdc++-v3/ChangeLog
libstdc++-v3/include/std/optional