Commit Graph

8 Commits

Author SHA1 Message Date
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
Louis Dionne 6900df37d2 [libc++] Remove Lit annotations for unsupported GCC versions from the test suite
Since we officially don't support several older compilers now, we can
drop a lot of the markup in the test suite. This helps keep the test
suite simple and makes sure that UNSUPPORTED annotations don't rot.

This is the first patch of a series that will remove annotations for
compilers that are now unsupported.

Differential Revision: https://reviews.llvm.org/D107787
2021-08-12 13:30:47 -04:00
Christopher Di Bella 0cf65382ad [libcxx][modularisation] properly modularises advance, next, and prev
`__function_like` wasn't being exported, so certain properties of the
`ranges` functions weren't being propagated in modules land.

Differential Revision: https://reviews.llvm.org/D105078
2021-07-22 23:30:02 +00:00
Louis Dionne 74fb868942 [libc++] Add XFAIL for Clang ToT with modules
This is what I should have done instead of 6afd6e96ce.
2021-07-08 14:40:18 -04:00
Christopher Di Bella c5076d8371 Revert "Revert "[libcxx][module-map] creates submodules for private headers""
This reverts commit d9633f229c as a
workaround was discovered.

Differential Revision: https://reviews.llvm.org/D104170
2021-06-16 16:36:41 +00:00
Louis Dionne 9f967eed89 [libc++] NFC: More refactoring in the prev/next/advance tests per review comments 2021-06-14 08:42:44 -04:00
Louis Dionne 8e93aa304b [libc++] Refactor the tests for std::prev, next and advance
This started as an attempt to fix a GCC 11 warning of misplaced parentheses.
I then noticed that trying to fix the parentheses warning actually triggered
errors in the tests, showing that we were incorrectly assuming that the
implementation of ranges::advance was using operator+= or operator-=.

This commit fixes that issue and makes the tests easier to follow by
localizing the assertions it makes.

Differential Revision: https://reviews.llvm.org/D103272
2021-06-14 08:13:14 -04:00
Christopher Di Bella 0dc7fd1bc1 [libcxx][iterator] adds `std::ranges::prev`
Implements part of P0896 'The One Ranges Proposal'.
Implements [range.iter.op.prev].

Depends on D102563.

Differential Revision: https://reviews.llvm.org/D102564
2021-05-27 04:41:27 +00:00