bf78e97730
-- 803abc2dcad8b2354c988e9bf58dac4a17683832 by Gennadiy Rozental <rogeeff@google.com>: Avoid warning when RTTI is not enabled. PiperOrigin-RevId: 294247546 -- 5a7b0b4d07d1d6e56fbb0b0ffbf4f8fcab772dbf by Derek Mauro <dmauro@google.com>: Add a public Abseil FAQ PiperOrigin-RevId: 294226960 -- 6945c4a6df7d7679711fea31aacf4fba6ac7baa1 by Gennadiy Rozental <rogeeff@google.com>: Re-enable type mismatch check, which works in all the cases including shared libraries. We will use RTTI in case when our hand written approximation of it reports a type mismatch. This way we can ensure that if a flag is defined in one shared object and referenced in another we do not report spurious errors. PiperOrigin-RevId: 293905563 GitOrigin-RevId: 803abc2dcad8b2354c988e9bf58dac4a17683832 Change-Id: I1a23776d227ed2734c2e7183323786b7a95c3cc7
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
//
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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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// 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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