Christopher Di Bella 69d5a66621 [libcxx][modularisation] splits <utility> into self-contained headers
* moves `std::hash` and `std::unary_function` into `__functional`
* Everything else goes into `__utility/${NAME}.h`

Differential Revision: https://reviews.llvm.org/D104002
2021-06-25 00:29:01 +00:00

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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H
#define _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Arg, class _Result>
struct _LIBCPP_TEMPLATE_VIS unary_function
{
typedef _Arg argument_type;
typedef _Result result_type;
};
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___FUNCTIONAL_UNARY_FUNCTION_H