A. Jiang 63eb40eeb1
[libc++] Deprecate and remove meaningless <cxxx> headers (#111615)
This PR deprecates `<ccomplex>`, `<cstdbool>`, `<ctgmath>`, and
`<ciso646>` in C++17 and "removes" them in C++20 by special deprecation
warnings.

`<cstdalign>` is previously missing. This PR also tries to add them, and
then deprecates and "removes" `<cstdalign>`.

Papers:
- https://wg21.link/P0063R3
- https://wg21.link/P0619R4

Closes #99985.

---------

Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
2024-10-30 09:49:26 +08:00

38 lines
891 B
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// test <cstdbool> // deprecated in C++17, removed in C++20, but still provided by libc++ as an extension
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
#include <cstdbool>
#include "test_macros.h"
#ifndef __bool_true_false_are_defined
#error __bool_true_false_are_defined not defined
#endif
#ifdef bool
#error bool should not be defined
#endif
#ifdef true
#error true should not be defined
#endif
#ifdef false
#error false should not be defined
#endif
int main(int, char**)
{
return 0;
}