has_absl_stringify.h

Enable keyboard shortcuts

// Copyright 2022 The Abseil Authors

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#ifndef ABSL_STRINGS_INTERNAL_HAS_ABSL_STRINGIFY_H_

#define ABSL_STRINGS_INTERNAL_HAS_ABSL_STRINGIFY_H_

#include <string>

#include <type_traits>

#include <utility>

#include "absl/base/attributes.h"

#include "absl/strings/has_absl_stringify.h"

namespace absl {

ABSL_NAMESPACE_BEGIN

namespace strings_internal {

template <typename T, typename = void>

struct ABSL_DEPRECATED("Use absl::HasAbslStringify") HasAbslStringify

    : std::false_type {};

template <typename T>

struct ABSL_DEPRECATED("Use absl::HasAbslStringify") HasAbslStringify<

    T, std::enable_if_t<std::is_void<decltype(AbslStringify(

           std::declval<strings_internal::UnimplementedSink&>(),

           std::declval<const T&>()))>::value>> : std::true_type {};

}  // namespace strings_internal

ABSL_NAMESPACE_END

}  // namespace absl

#endif  // ABSL_STRINGS_INTERNAL_HAS_ABSL_STRINGIFY_H_