libcxx/test/std/utilities/template.bitset/bitset.members/reset_all.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(); // constexpr since C++23
  10
  11 #include <bitset>
  12 #include <cassert>
  13 #include <cstddef>
  14
  15 #include "test_macros.h"
  16
  17 template <std::size_t N>
  18 TEST_CONSTEXPR_CXX23 void test_reset_all() {
  19     std::bitset<N> v;
  20     v.set();
  21     v.reset();
  22     for (std::size_t i = 0; i < v.size(); ++i)
  23         assert(!v[i]);
  24 }
  25
  26 TEST_CONSTEXPR_CXX23 bool test() {
  27   test_reset_all<0>();
  28   test_reset_all<1>();
  29   test_reset_all<31>();
  30   test_reset_all<32>();
  31   test_reset_all<33>();
  32   test_reset_all<63>();
  33   test_reset_all<64>();
  34   test_reset_all<65>();
  35   test_reset_all<1000>();
  36
  37   return true;
  38 }
  39
  40 int main(int, char**) {
  41   test();
  42 #if TEST_STD_VER > 20
  43   static_assert(test());
  44 #endif
  45
  46   return 0;
  47 }