File: bit_cast.pass.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (36 lines) | stat: -rw-r--r-- 981 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
 
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03, c++11, c++14, c++17

// Make sure that std::bit_cast works with std::complex. Test case extracted from
// https://github.com/llvm/llvm-project/issues/94620.

#include <bit>
#include <complex>

template <class T>
constexpr void test() {
  using Complex                       = std::complex<T>;
  unsigned char data[sizeof(Complex)] = {0};

  [[maybe_unused]] Complex c = std::bit_cast<Complex>(data);
}

constexpr bool test_all() {
  test<float>();
  test<double>();
  test<long double>();
  return true;
}

int main(int, char**) {
  test_all();
  static_assert(test_all());
  return 0;
}