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| author | Ville Voutilainen <ville.voutilainen@gmail.com> | 2017-01-21 17:38:23 +0200 |
|---|---|---|
| committer | Ville Voutilainen <ville@gcc.gnu.org> | 2017-01-21 17:38:23 +0200 |
| commit | 509912a611f9e86883cd1f3c1751e4a1b3cb7abf (patch) | |
| tree | c4dd133b3f3bc23f7e1a1395c9e1fc10b1c2fde0 /gcc/cfg.c | |
| parent | c31d5fcecf100a3012fae0b99639022a992f28f0 (diff) | |
| download | gcc-509912a611f9e86883cd1f3c1751e4a1b3cb7abf.tar.gz | |
Make poisoned hashes SFINAE away the call operator of the hash.
* include/bits/functional_hash.h
(__poison_hash::__enable_hash_call): New.
* include/std/optional (__optional_hash_call_base): New.
(hash<optional<_Tp>>): Derive from the new base,
move the hash function into that base.
* include/std/variant (__variant_hash_call_base_impl): New.
(__variant_hash_call_base): Likewise.
(hash<variant<_Types...>>): Derive from the new base,
move the hash function into that base.
* testsuite/20_util/optional/hash.cc: Add tests for is_callable.
* testsuite/20_util/variant/hash.cc: Likewise.
From-SVN: r244748
Diffstat (limited to 'gcc/cfg.c')
0 files changed, 0 insertions, 0 deletions