Commit Graph

3 Commits

Author SHA1 Message Date
Konstantin Varlamov 8d23b7420c [libc++][ranges] Implement `uninitialized_copy{,_n}` and `uninitialized_move{,_n}`.
Also implement `in_out_result` which is a prerequisite.

Differential Revision: https://reviews.llvm.org/D116023
2022-01-10 22:49:50 -08:00
Konstantin Varlamov 754ea6fd4d [libc++][ranges] Implement `uninitialized_value_construct{,_n}` and `uninitialized_fill{,_n}`.
Also:
- refactor out `__voidify`;
- use the `destroy` algorithm internally;
- refactor out helper classes used in tests for `uninitialized_*`
  algorithms.

Differential Revision: https://reviews.llvm.org/D115626
2021-12-20 00:24:27 -08:00
Konstantin Varlamov 3f630cff65 [libc++][ranges] Implement ranges::uninitialized_default_construct{,_n}.
Defined in [`specialized.algorithms`](wg21.link/specialized.algorithms).

Also:
- refactor the existing non-range implementation so that most of it
  can be shared between the range-based and non-range-based algorithms;
- remove an existing test for the non-range version of
  `uninitialized_default_construct{,_n}` that likely triggered undefined
  behavior (it read the values of built-ins after default-initializing
  them, essentially reading uninitialized memory).

Reviewed By: #libc, Quuxplusone, ldionne

Differential Revision: https://reviews.llvm.org/D115315
2021-12-14 14:11:46 -08:00