WindowsXP-SP1/base/crts/crtw32/stdhpp/functional
2020-09-30 16:53:49 +02:00

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// functional standard header
#pragma once
#ifndef _FUNCTIONAL_
#define _FUNCTIONAL_
#include <xstddef>
#pragma pack(push,8)
#pragma warning(push,3)
#pragma warning(disable: 4244)
_STD_BEGIN
// TEMPLATE STRUCT unary_function
template<class _Arg,
class _Result>
struct unary_function
{ // base class for unary functions
typedef _Arg argument_type;
typedef _Result result_type;
};
// TEMPLATE STRUCT binary_function
template<class _Arg1,
class _Arg2,
class _Result>
struct binary_function
{ // base class for binary functions
typedef _Arg1 first_argument_type;
typedef _Arg2 second_argument_type;
typedef _Result result_type;
};
// TEMPLATE STRUCT plus
template<class _Ty>
struct plus
: public binary_function<_Ty, _Ty, _Ty>
{ // functor for operator+
_Ty operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator+ to operands
return (_Left + _Right);
}
};
// TEMPLATE STRUCT minus
template<class _Ty>
struct minus
: public binary_function<_Ty, _Ty, _Ty>
{ // functor for operator-
_Ty operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator- to operands
return (_Left - _Right);
}
};
// TEMPLATE STRUCT multiplies
template<class _Ty>
struct multiplies
: public binary_function<_Ty, _Ty, _Ty>
{ // functor for operator*
_Ty operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator* to operands
return (_Left * _Right);
}
};
// TEMPLATE STRUCT divides
template<class _Ty>
struct divides
: public binary_function<_Ty, _Ty, _Ty>
{ // functor for operator/
_Ty operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator/ to operands
return (_Left / _Right);
}
};
// TEMPLATE STRUCT modulus
template<class _Ty>
struct modulus
: public binary_function<_Ty, _Ty, _Ty>
{ // functor for operator%
_Ty operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator% to operands
return (_Left % _Right);
}
};
// TEMPLATE STRUCT negate
template<class _Ty>
struct negate
: public unary_function<_Ty, _Ty>
{ // functor for unary operator-
_Ty operator()(const _Ty& _Left) const
{ // apply operator- to operand
return (-_Left);
}
};
// TEMPLATE STRUCT equal_to
template<class _Ty>
struct equal_to
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator==
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator== to operands
return (_Left == _Right);
}
};
// TEMPLATE STRUCT not_equal_to
template<class _Ty>
struct not_equal_to
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator!=
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator= to operands
return (_Left != _Right);
}
};
// TEMPLATE STRUCT greater
template<class _Ty>
struct greater
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator>
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator> to operands
return (_Left > _Right);
}
};
// TEMPLATE STRUCT less
template<class _Ty>
struct less
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator<
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator< to operands
return (_Left < _Right);
}
};
// TEMPLATE STRUCT greater_equal
template<class _Ty>
struct greater_equal
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator>=
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator>= to operands
return (_Left >= _Right);
}
};
// TEMPLATE STRUCT less_equal
template<class _Ty>
struct less_equal
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator<=
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator<= to operands
return (_Left <= _Right);
}
};
// TEMPLATE STRUCT logical_and
template<class _Ty>
struct logical_and
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator&&
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator&& to operands
return (_Left && _Right);
}
};
// TEMPLATE STRUCT logical_or
template<class _Ty>
struct logical_or
: public binary_function<_Ty, _Ty, bool>
{ // functor for operator||
bool operator()(const _Ty& _Left, const _Ty& _Right) const
{ // apply operator|| to operands
return (_Left || _Right);
}
};
// TEMPLATE STRUCT logical_not
template<class _Ty>
struct logical_not
: public unary_function<_Ty, bool>
{ // functor for unary operator!
bool operator()(const _Ty& _Left) const
{ // apply operator! to operand
return (!_Left);
}
};
// TEMPLATE CLASS unary_negate
template<class _Fn1>
class unary_negate
: public unary_function<typename _Fn1::argument_type, bool>
{ // functor adapter !_Func(left)
public:
explicit unary_negate(const _Fn1& _Func)
: _Functor(_Func)
{ // construct from functor
}
bool operator()(const typename _Fn1::argument_type& _Left) const
{ // apply functor to operand
return (!_Functor(_Left));
}
protected:
_Fn1 _Functor; // the functor to apply
};
// TEMPLATE FUNCTION not1
template<class _Fn1> inline
unary_negate<_Fn1> not1(const _Fn1& _Func)
{ // return a unary_negate functor adapter
return (std::unary_negate<_Fn1>(_Func));
}
// TEMPLATE CLASS binary_negate
template<class _Fn2>
class binary_negate
: public binary_function<typename _Fn2::first_argument_type,
typename _Fn2::second_argument_type, bool>
{ // functor adapter !_Func(left, right)
public:
explicit binary_negate(const _Fn2& _Func)
: _Functor(_Func)
{ // construct from functor
}
bool operator()(const typename _Fn2::first_argument_type& _Left,
const typename _Fn2::second_argument_type& _Right) const
{ // apply functor to operands
return (!_Functor(_Left, _Right));
}
protected:
_Fn2 _Functor; // the functor to apply
};
// TEMPLATE FUNCTION not2
template<class _Fn2> inline
binary_negate<_Fn2> not2(const _Fn2& _Func)
{ // return a binary_negate functor adapter
return (std::binary_negate<_Fn2>(_Func));
}
// TEMPLATE CLASS binder1st
template<class _Fn2>
class binder1st
: public unary_function<typename _Fn2::second_argument_type,
typename _Fn2::result_type>
{ // functor adapter _Func(stored, right)
public:
typedef unary_function<typename _Fn2::second_argument_type,
typename _Fn2::result_type> _Base;
typedef typename _Base::argument_type argument_type;
typedef typename _Base::result_type result_type;
binder1st(const _Fn2& _Func,
const typename _Fn2::first_argument_type& _Left)
: op(_Func), value(_Left)
{ // construct from functor and left operand
}
result_type operator()(const argument_type& _Right) const
{ // apply functor to operands
return (op(value, _Right));
}
protected:
_Fn2 op; // the functor to apply
typename _Fn2::first_argument_type value; // the left operand
};
// TEMPLATE FUNCTION bind1st
template<class _Fn2,
class _Ty> inline
binder1st<_Fn2> bind1st(const _Fn2& _Func, const _Ty& _Left)
{ // return a binder1st functor adapter
typename _Fn2::first_argument_type _Val(_Left);
return (std::binder1st<_Fn2>(_Func, _Val));
}
// TEMPLATE CLASS binder2nd
template<class _Fn2>
class binder2nd
: public unary_function<typename _Fn2::first_argument_type,
typename _Fn2::result_type>
{ // functor adapter _Func(left, stored)
public:
typedef unary_function<typename _Fn2::first_argument_type,
typename _Fn2::result_type> _Base;
typedef typename _Base::argument_type argument_type;
typedef typename _Base::result_type result_type;
binder2nd(const _Fn2& _Func,
const typename _Fn2::second_argument_type& _Right)
: op(_Func), value(_Right)
{ // construct from functor and right operand
}
result_type operator()(const argument_type& _Left) const
{ // apply functor to operands
return (op(_Left, value));
}
protected:
_Fn2 op; // the functor to apply
typename _Fn2::second_argument_type value; // the right operand
};
// TEMPLATE FUNCTION bind2nd
template<class _Fn2,
class _Ty> inline
binder2nd<_Fn2> bind2nd(const _Fn2& _Func, const _Ty& _Right)
{ // return a binder2nd functor adapter
typename _Fn2::second_argument_type _Val(_Right);
return (std::binder2nd<_Fn2>(_Func, _Val));
}
// TEMPLATE CLASS pointer_to_unary_function
template<class _Arg,
class _Result>
class pointer_to_unary_function
: public unary_function<_Arg, _Result>
{ // functor adapter (*pfunc)(left)
public:
explicit pointer_to_unary_function(_Result (__cdecl *_Left)(_Arg))
: _Pfun(_Left)
{ // construct from pointer
}
_Result operator()(_Arg _Left) const
{ // call function with operand
return (_Pfun(_Left));
}
protected:
_Result (__cdecl *_Pfun)(_Arg); // the function pointer
};
// TEMPLATE CLASS pointer_to_binary_function
template<class _Arg1,
class _Arg2,
class _Result>
class pointer_to_binary_function
: public binary_function<_Arg1, _Arg2, _Result>
{ // functor adapter (*pfunc)(left, right)
public:
explicit pointer_to_binary_function(
_Result (__cdecl *_Left)(_Arg1, _Arg2))
: _Pfun(_Left)
{ // construct from pointer
}
_Result operator()(_Arg1 _Left, _Arg2 _Right) const
{ // call function with operands
return (_Pfun(_Left, _Right));
}
protected:
_Result (__cdecl *_Pfun)(_Arg1, _Arg2); // the function pointer
};
// TEMPLATE FUNCTION ptr_fun
template<class _Arg,
class _Result> inline
pointer_to_unary_function<_Arg, _Result>
ptr_fun(_Result (__cdecl *_Left)(_Arg))
{ // return pointer_to_unary_function functor adapter
return (std::pointer_to_unary_function<_Arg, _Result>(_Left));
}
template<class _Arg1,
class _Arg2,
class _Result> inline
pointer_to_binary_function<_Arg1, _Arg2, _Result>
ptr_fun(_Result (__cdecl *_Left)(_Arg1, _Arg2))
{ // return pointer_to_binary_function functor adapter
return (std::pointer_to_binary_function<_Arg1, _Arg2, _Result>(_Left));
}
// TEMPLATE CLASS mem_fun_t
template<class _Result,
class _Ty>
class mem_fun_t
: public unary_function<_Ty *, _Result>
{ // functor adapter (*p->*pfunc)(), non-const *pfunc
public:
explicit mem_fun_t(_Result (_Ty::*_Pm)())
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(_Ty *_Pleft) const
{ // call function
return ((_Pleft->*_Pmemfun)());
}
private:
_Result (_Ty::*_Pmemfun)(); // the member function pointer
};
// TEMPLATE CLASS mem_fun1_t
template<class _Result,
class _Ty,
class _Arg>
class mem_fun1_t
: public binary_function<_Ty *, _Arg, _Result>
{ // functor adapter (*p->*pfunc)(val), non-const *pfunc
public:
explicit mem_fun1_t(_Result (_Ty::*_Pm)(_Arg))
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(_Ty *_Pleft, _Arg _Right) const
{ // call function with operand
return ((_Pleft->*_Pmemfun)(_Right));
}
private:
_Result (_Ty::*_Pmemfun)(_Arg); // the member function pointer
};
// TEMPLATE CLASS const_mem_fun_t
template<class _Result,
class _Ty>
class const_mem_fun_t
: public unary_function<const _Ty *, _Result>
{ // functor adapter (*p->*pfunc)(), const *pfunc
public:
explicit const_mem_fun_t(_Result (_Ty::*_Pm)() const)
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(const _Ty *_Pleft) const
{ // call function
return ((_Pleft->*_Pmemfun)());
}
private:
_Result (_Ty::*_Pmemfun)() const; // the member function pointer
};
// TEMPLATE CLASS const_mem_fun1_t
template<class _Result,
class _Ty,
class _Arg>
class const_mem_fun1_t
: public binary_function<_Ty *, _Arg, _Result>
{ // functor adapter (*p->*pfunc)(val), const *pfunc
public:
explicit const_mem_fun1_t(_Result (_Ty::*_Pm)(_Arg) const)
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(const _Ty *_Pleft, _Arg _Right) const
{ // call function with operand
return ((_Pleft->*_Pmemfun)(_Right));
}
private:
_Result (_Ty::*_Pmemfun)(_Arg) const; // the member function pointer
};
// TEMPLATE FUNCTION mem_fun
template<class _Result,
class _Ty> inline
mem_fun_t<_Result, _Ty> mem_fun(_Result (_Ty::*_Pm)())
{ // return a mem_fun_t functor adapter
return (std::mem_fun_t<_Result, _Ty>(_Pm));
}
template<class _Result,
class _Ty,
class _Arg> inline
mem_fun1_t<_Result, _Ty, _Arg> mem_fun(_Result (_Ty::*_Pm)(_Arg))
{ // return a mem_fun1_t functor adapter
return (std::mem_fun1_t<_Result, _Ty, _Arg>(_Pm));
}
template<class _Result,
class _Ty> inline
const_mem_fun_t<_Result, _Ty>
mem_fun(_Result (_Ty::*_Pm)() const)
{ // return a const_mem_fun_t functor adapter
return (std::const_mem_fun_t<_Result, _Ty>(_Pm));
}
template<class _Result,
class _Ty,
class _Arg> inline
const_mem_fun1_t<_Result, _Ty, _Arg>
mem_fun(_Result (_Ty::*_Pm)(_Arg) const)
{ // return a const_mem_fun1_t functor adapter
return (std::const_mem_fun1_t<_Result, _Ty, _Arg>(_Pm));
}
// TEMPLATE FUNCTION mem_fun1 (retained)
template<class _Result,
class _Ty,
class _Arg> inline
mem_fun1_t<_Result, _Ty, _Arg> mem_fun1(_Result (_Ty::*_Pm)(_Arg))
{ // return a mem_fun1_t functor adapter
return (std::mem_fun1_t<_Result, _Ty, _Arg>(_Pm));
}
// TEMPLATE CLASS mem_fun_ref_t
template<class _Result,
class _Ty>
class mem_fun_ref_t
: public unary_function<_Ty, _Result>
{ // functor adapter (*left.*pfunc)(), non-const *pfunc
public:
explicit mem_fun_ref_t(_Result (_Ty::*_Pm)())
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(_Ty& _Left) const
{ // call function
return ((_Left.*_Pmemfun)());
}
private:
_Result (_Ty::*_Pmemfun)(); // the member function pointer
};
// TEMPLATE CLASS mem_fun1_ref_t
template<class _Result,
class _Ty,
class _Arg>
class mem_fun1_ref_t
: public binary_function<_Ty, _Arg, _Result>
{ // functor adapter (*left.*pfunc)(val), non-const *pfunc
public:
explicit mem_fun1_ref_t(_Result (_Ty::*_Pm)(_Arg))
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(_Ty& _Left, _Arg _Right) const
{ // call function with operand
return ((_Left.*_Pmemfun)(_Right));
}
private:
_Result (_Ty::*_Pmemfun)(_Arg); // the member function pointer
};
// TEMPLATE CLASS const_mem_fun_ref_t
template<class _Result,
class _Ty>
class const_mem_fun_ref_t
: public unary_function<_Ty, _Result>
{ // functor adapter (*left.*pfunc)(), const *pfunc
public:
explicit const_mem_fun_ref_t(_Result (_Ty::*_Pm)() const)
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(const _Ty& _Left) const
{ // call function
return ((_Left.*_Pmemfun)());
}
private:
_Result (_Ty::*_Pmemfun)() const; // the member function pointer
};
// TEMPLATE CLASS const_mem_fun1_ref_t
template<class _Result,
class _Ty,
class _Arg>
class const_mem_fun1_ref_t
: public binary_function<_Ty, _Arg, _Result>
{ // functor adapter (*left.*pfunc)(val), const *pfunc
public:
explicit const_mem_fun1_ref_t(_Result (_Ty::*_Pm)(_Arg) const)
: _Pmemfun(_Pm)
{ // construct from pointer
}
_Result operator()(const _Ty& _Left, _Arg _Right) const
{ // call function with operand
return ((_Left.*_Pmemfun)(_Right));
}
private:
_Result (_Ty::*_Pmemfun)(_Arg) const; // the member function pointer
};
// TEMPLATE FUNCTION mem_fun_ref
template<class _Result,
class _Ty> inline
mem_fun_ref_t<_Result, _Ty> mem_fun_ref(_Result (_Ty::*_Pm)())
{ // return a mem_fun_ref_t functor adapter
return (std::mem_fun_ref_t<_Result, _Ty>(_Pm));
}
template<class _Result,
class _Ty,
class _Arg> inline
mem_fun1_ref_t<_Result, _Ty, _Arg>
mem_fun_ref(_Result (_Ty::*_Pm)(_Arg))
{ // return a mem_fun1_ref_t functor adapter
return (std::mem_fun1_ref_t<_Result, _Ty, _Arg>(_Pm));
}
template<class _Result,
class _Ty> inline
const_mem_fun_ref_t<_Result, _Ty>
mem_fun_ref(_Result (_Ty::*_Pm)() const)
{ // return a const_mem_fun_ref_t functor adapter
return (std::const_mem_fun_ref_t<_Result, _Ty>(_Pm));
}
template<class _Result,
class _Ty,
class _Arg> inline
const_mem_fun1_ref_t<_Result, _Ty, _Arg>
mem_fun_ref(_Result (_Ty::*_Pm)(_Arg) const)
{ // return a const_mem_fun1_ref_t functor adapter
return (std::const_mem_fun1_ref_t<_Result, _Ty, _Arg>(_Pm));
}
// TEMPLATE FUNCTION mem_fun1_ref (retained)
template<class _Result,
class _Ty,
class _Arg> inline
mem_fun1_ref_t<_Result, _Ty, _Arg> mem_fun1_ref(_Result (_Ty::*_Pm)(_Arg))
{ // return a mem_fun1_ref_t functor adapter
return (std::mem_fun1_ref_t<_Result, _Ty, _Arg>(_Pm));
}
_STD_END
#pragma warning(default: 4244)
#pragma warning(pop)
#pragma pack(pop)
#endif /* _FUNCTIONAL_ */
/*
* Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED.
* Consult your license regarding permissions and restrictions.
*/
/*
* This file is derived from software bearing the following
* restrictions:
*
* Copyright (c) 1994
* Hewlett-Packard Company
*
* Permission to use, copy, modify, distribute and sell this
* software and its documentation for any purpose is hereby
* granted without fee, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation.
* Hewlett-Packard Company makes no representations about the
* suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
V3.10:0009 */