1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP__UTILITY_PRIVATE_CONSTRUCTOR_TAG_H 11 #define _LIBCPP__UTILITY_PRIVATE_CONSTRUCTOR_TAG_H 12 13 #include <__config> 14 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 // This tag allows defining non-standard exposition-only constructors while 22 // preventing users from being able to use them, since this reserved-name tag 23 // needs to be used. 24 struct __private_constructor_tag {}; 25 26 _LIBCPP_END_NAMESPACE_STD 27 28 #endif // _LIBCPP__UTILITY_PRIVATE_CONSTRUCTOR_TAG_H 29