368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___FUNCTIONAL_BINDER2ND_H
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#define _LIBCPP___FUNCTIONAL_BINDER2ND_H
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#include <__config>
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#include <__functional/unary_function.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS)
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template <class __Operation>
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class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX11 binder2nd
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: public unary_function<typename __Operation::first_argument_type,
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typename __Operation::result_type>
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{
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protected:
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__Operation op;
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typename __Operation::second_argument_type value;
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public:
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_LIBCPP_INLINE_VISIBILITY
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binder2nd(const __Operation& __x, const typename __Operation::second_argument_type __y)
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: op(__x), value(__y) {}
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_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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( typename __Operation::first_argument_type& __x) const
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{return op(__x, value);}
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_LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
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(const typename __Operation::first_argument_type& __x) const
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{return op(__x, value);}
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};
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template <class __Operation, class _Tp>
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_LIBCPP_DEPRECATED_IN_CXX11 inline _LIBCPP_INLINE_VISIBILITY
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binder2nd<__Operation>
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bind2nd(const __Operation& __op, const _Tp& __x)
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{return binder2nd<__Operation>(__op, __x);}
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#endif // _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_BINDERS)
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___FUNCTIONAL_BINDER2ND_H
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