libcxx/test/std/containers/sequences/vector.bool/find.pass.cpp

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// <vector>
// vector<bool>

// std::find with vector<bool>::iterator

// https://llvm.org/PR16816

#include <vector>
#include <algorithm>
#include <cassert>
#include <cstddef>

#include "test_macros.h"

TEST_CONSTEXPR_CXX20 bool tests() {
  {
    for (unsigned i = 1; i < 256; ++i) {
      std::vector<bool> b(i, true);
      std::vector<bool>::iterator j = std::find(b.begin() + 1, b.end(), false);
      assert(static_cast<std::size_t>(j - b.begin()) == i);
      assert(b.end() == j);
    }
  }
  {
    for (unsigned i = 1; i < 256; ++i) {
      std::vector<bool> b(i, false);
      std::vector<bool>::iterator j = std::find(b.begin() + 1, b.end(), true);
      assert(static_cast<std::size_t>(j - b.begin()) == i);
      assert(b.end() == j);
    }
  }

  return true;
}

int main(int, char**) {
  tests();
#if TEST_STD_VER > 17
  static_assert(tests());
#endif
  return 0;
}