chromium/base/types/to_address_unittest.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/types/to_address.h"

#include <array>
#include <memory>
#include <type_traits>

namespace base {
namespace {

// A constant whose definition will fail to compile if `to_address()` is not
// SFINAE-compatible.
kIsPtr;

kIsPtr;

struct FancyPointer {};

struct NotPointer {};

enum class EnumClass {};

// Like `std::to_address()`, `to_address()` should correctly handle things
// that can act like pointers:
// * Raw pointers
static_assert;
// * Iterators
static_assert;
// * STL-provided smart pointers
static_assert;
// * User-defined smart pointers, as long as they have `operator->()`
static_assert;

// Unlike `std::to_address()`, `to_address()` is guaranteed to be
// SFINAE-compatible with things that don't act like pointers:
// * Basic types
static_assert;
// * Enum classes
static_assert;
// * Structs without an `operator->()`
static_assert;

}  // namespace
}  // namespace base