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//===--------------------- mutex_destructor.cpp ---------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// Define ~mutex.
// On some platforms ~mutex has been made trivial and the definition is only
// provided for ABI compatibility.
// In order to avoid ODR violations within libc++ itself, we need to ensure
// that *nothing* sees the non-trivial mutex declaration. For this reason
// we re-declare the entire class in this file instead of using
// _LIBCPP_BUILDING_LIBRARY to change the definition in the headers.
#include "__config"
#include "__threading_support"
#if !defined(_LIBCPP_HAS_NO_THREADS)
class _LIBCPP_TYPE_VIS mutex
__libcpp_mutex_t __m_ = _LIBCPP_MUTEX_INITIALIZER;
constexpr mutex() = default;
mutex(const mutex&) = delete;
mutex& operator=(const mutex&) = delete;
~mutex() noexcept;
mutex::~mutex() _NOEXCEPT