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

// <span>

// template <class ElementType, size_t Extent>
//     span<byte,
//          Extent == dynamic_extent
//              ? dynamic_extent
//              : sizeof(ElementType) * Extent>
//     as_writable_bytes(span<ElementType, Extent> s) noexcept;

#include <span>
#include <string>

#include "test_macros.h"

const int iArr2[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};

struct A {};

void f() {
  std::as_writable_bytes(std::span<const int>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const long>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const double>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const A>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const std::string>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}

  std::as_writable_bytes(std::span<const int, 0>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const long, 0>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const double, 0>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const A, 0>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const std::string, (std::size_t)0>());
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}

  std::as_writable_bytes(std::span<const int>(iArr2, 1));
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
  std::as_writable_bytes(std::span<const int, 1>(iArr2 + 5, 1));
  // expected-error@-1 {{no matching function for call to 'as_writable_bytes'}}
}