libcxx/test/std/containers/sequences/array/array.fill/fill.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
//
//===----------------------------------------------------------------------===//

// <array>

// void fill(const T& u);

#include <array>
#include <cassert>

#include "test_macros.h"

TEST_CONSTEXPR_CXX20 bool tests() {
  {
    typedef double T;
    typedef std::array<T, 3> C;
    C c = {1, 2, 3.5};
    c.fill(5.5);
    assert(c.size() == 3);
    assert(c[0] == 5.5);
    assert(c[1] == 5.5);
    assert(c[2] == 5.5);
  }

  {
    typedef double T;
    typedef std::array<T, 0> C;
    C c = {};
    c.fill(5.5);
    assert(c.size() == 0);
  }
  return true;
}

int main(int, char**) {
  tests();
#if TEST_STD_VER >= 20
  static_assert(tests(), "");
#endif
  return 0;
}