2796d500ae
-- b770d03c2f1042d399c3f9576e881691cbe962c4 by Abseil Team <absl-team@google.com>: Avoid applying the workaround for MSVC's static initialization problems when using clang-cl. PiperOrigin-RevId: 275870089 -- 2b8fc02ec49aeb5ad56cef20259cdd7f6ee0c917 by Abseil Team <absl-team@google.com>: Document return values. PiperOrigin-RevId: 275839042 -- baa99064f9a28b188661df7fba989fcd558818af by Abseil Team <absl-team@google.com>: Support "auto" and other uncommon builtin types in absl::debugging_internal::Demangle. PiperOrigin-RevId: 275556195 -- f9d5c6a3a0d374dbf105d6e2e9e0c8fa949ed187 by Gennadiy Rozental <rogeeff@google.com>: Internal rework. PiperOrigin-RevId: 275550005 -- 2679a77db5b26349e8c8b2059621af55d2fca139 by Mark Barolak <mbar@google.com>: Remove a comment reference to the no longer extant ::string implementation. PiperOrigin-RevId: 275531987 -- 7b427a7613c44a98c6f13da43b2bff2837ca6b19 by Derek Mauro <dmauro@google.com>: Upgrade to Bazel 1.0.0 and CMake 3.15.4 PiperOrigin-RevId: 275500823 -- 81f7d20905debf9d1e300bd2e9899f88d27f632a by Derek Mauro <dmauro@google.com>: Fix -Wimplicit-int-float-conversion warning in latest clang PiperOrigin-RevId: 275492439 GitOrigin-RevId: b770d03c2f1042d399c3f9576e881691cbe962c4 Change-Id: I9b39dad524489f0d62c912d02e8ac43761c81e55
63 lines
2 KiB
C++
63 lines
2 KiB
C++
//
|
|
// Copyright 2019 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.
|
|
//
|
|
// -----------------------------------------------------------------------------
|
|
// File: declare.h
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// This file defines the ABSL_DECLARE_FLAG macro, allowing you to declare an
|
|
// `absl::Flag` for use within a translation unit. You should place this
|
|
// declaration within the header file associated with the .cc file that defines
|
|
// and owns the `Flag`.
|
|
|
|
#ifndef ABSL_FLAGS_DECLARE_H_
|
|
#define ABSL_FLAGS_DECLARE_H_
|
|
|
|
#include "absl/strings/string_view.h"
|
|
|
|
namespace absl {
|
|
namespace flags_internal {
|
|
|
|
// absl::Flag<T> represents a flag of type 'T' created by ABSL_FLAG.
|
|
template <typename T>
|
|
class Flag;
|
|
|
|
} // namespace flags_internal
|
|
|
|
// Flag
|
|
//
|
|
// Forward declaration of the `absl::Flag` type for use in defining the macro.
|
|
#if defined(_MSC_VER) && !defined(__clang__)
|
|
template <typename T>
|
|
class Flag;
|
|
#else
|
|
template <typename T>
|
|
using Flag = flags_internal::Flag<T>;
|
|
#endif
|
|
|
|
} // namespace absl
|
|
|
|
// ABSL_DECLARE_FLAG()
|
|
//
|
|
// This macro is a convenience for declaring use of an `absl::Flag` within a
|
|
// translation unit. This macro should be used within a header file to
|
|
// declare usage of the flag within any .cc file including that header file.
|
|
//
|
|
// The ABSL_DECLARE_FLAG(type, name) macro expands to:
|
|
//
|
|
// extern absl::Flag<type> FLAGS_name;
|
|
#define ABSL_DECLARE_FLAG(type, name) extern ::absl::Flag<type> FLAGS_##name
|
|
|
|
#endif // ABSL_FLAGS_DECLARE_H_
|