libcxx/test/std/utilities/template.bitset/bitset.members/reset_one.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // bitset<N>& reset(size_t pos); // constexpr since C++23
  10
  11 #include <bitset>
  12 #include <cassert>
  13 #include <cstddef>
  14 #include <vector>
  15
  16 #include "../bitset_test_cases.h"
  17 #include "test_macros.h"
  18
  19 TEST_MSVC_DIAGNOSTIC_IGNORED(6294) // Ill-defined for-loop:  initial condition does not satisfy test.  Loop body not executed.
  20
  21 template <std::size_t N>
  22 TEST_CONSTEXPR_CXX23 void test_reset_one() {
  23     std::vector<std::bitset<N> > const cases = get_test_cases<N>();
  24     for (std::size_t c = 0; c != cases.size(); ++c) {
  25         for (std::size_t i = 0; i != N; ++i) {
  26             std::bitset<N> v = cases[c];
  27             v.reset(i);
  28             assert(v[i] == false);
  29         }
  30     }
  31 }
  32
  33 TEST_CONSTEXPR_CXX23 bool test() {
  34   test_reset_one<0>();
  35   test_reset_one<1>();
  36   test_reset_one<31>();
  37   test_reset_one<32>();
  38   test_reset_one<33>();
  39   test_reset_one<63>();
  40   test_reset_one<64>();
  41   test_reset_one<65>();
  42
  43   return true;
  44 }
  45
  46 int main(int, char**) {
  47   test();
  48   test_reset_one<1000>(); // not in constexpr because of constexpr evaluation step limits
  49 #if TEST_STD_VER > 20
  50   static_assert(test());
  51 #endif
  52
  53   return 0;
  54 }