Abseil Common Libraries (C++) (grcp 依赖)
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47 lines
1.3 KiB
47 lines
1.3 KiB
// |
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// Copyright 2019 The Abseil Authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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#include "absl/flags/flag.h" |
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#include "absl/base/config.h" |
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#include "absl/flags/internal/commandlineflag.h" |
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#include "absl/flags/internal/flag.h" |
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namespace absl { |
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ABSL_NAMESPACE_BEGIN |
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#ifndef NDEBUG |
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#define ABSL_FLAGS_GET(T) \ |
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T GetFlag(const absl::Flag<T>& flag) { return flag.Get(); } |
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ABSL_FLAGS_INTERNAL_BUILTIN_TYPES(ABSL_FLAGS_GET) |
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#undef ABSL_FLAGS_GET |
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#endif |
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// This global mutex protects on-demand construction of flag objects in MSVC |
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// builds. |
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#if defined(_MSC_VER) && !defined(__clang__) |
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namespace flags_internal { |
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ABSL_CONST_INIT static absl::Mutex construction_guard(absl::kConstInit); |
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absl::Mutex* GetGlobalConstructionGuard() { return &construction_guard; } |
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} // namespace flags_internal |
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#endif |
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ABSL_NAMESPACE_END |
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} // namespace absl
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