utilmm::unary_compose< UnaryFun1, UnaryFun2 > Struct Template Reference

Unary functors composition. More...

#include <unary_compose.hh>

List of all members.

Public Member Functions
UnaryFun1::result_type	operator() (arg_param x) const
	Call operator.
	unary_compose (UnaryFun1 const &one, UnaryFun2 const &two)
	Constructor.
Private Types
typedef arg_traits< typename UnaryFun2::argument_type > ::type	arg_param
Private Attributes
UnaryFun1	fun_1
UnaryFun2	fun_2
Related Functions
(Note that these are not member functions.)
template<class Fun1 , class Fun2 >
unary_compose< Fun1, Fun2 >	compose1 (Fun1 const &f, Fun2 const &g)
	Composition function.

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Detailed Description

template<class UnaryFun1, class UnaryFun2>
struct utilmm::unary_compose< UnaryFun1, UnaryFun2 >

Unary functors composition.

This class helps programmers to compose two std::unary_function in one

Parameters:

UnaryFun1	The first unary function
UnaryFun2	The second unary function

The resulting class is a functor corresponding to UnaryFun1(UnaryFun2(x))

Precondition:

The result_type of UnaryFun2 must be default convertible to the argument_type of UnaryFun1

Author:

Frédéric Py <fpy@laas.fr>

See also:

utilmm::binary_compose_2

Definition at line 31 of file unary_compose.hh.

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Member Typedef Documentation

template<class UnaryFun1, class UnaryFun2>

typedef arg_traits<typename UnaryFun2::argument_type>::type utilmm::unary_compose< UnaryFun1, UnaryFun2 >::arg_param [private]

Definition at line 39 of file unary_compose.hh.

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Constructor & Destructor Documentation

template<class UnaryFun1, class UnaryFun2>

utilmm::unary_compose< UnaryFun1, UnaryFun2 >::unary_compose	(	UnaryFun1 const &	one,
		UnaryFun2 const &	two
	)		[inline]

Constructor.

Create a new instance having the two functors instances to compose.

Parameters:

one	The first functor
two	The second functor

Postcondition:

newly created instance will have exactly the same behavior as one(two(x)).

See also:

utilmm::compose1

Definition at line 55 of file unary_compose.hh.

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Member Function Documentation

template<class UnaryFun1, class UnaryFun2>

UnaryFun1::result_type utilmm::unary_compose< UnaryFun1, UnaryFun2 >::operator()

(

arg_param

x

)

const [inline]

Call operator.

Compute the result of the composition for a given argument

Parameters:

x	The argument

Returns:

The result of the operation

Definition at line 66 of file unary_compose.hh.

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Friends And Related Function Documentation

template<class Fun1 , class Fun2 >

unary_compose< Fun1, Fun2 > compose1	(	Fun1 const &	f,
		Fun2 const &	g
	)		[related]

Composition function.

This function create a new unary_compose instance based on two given function. It only ease the declaration of unary_compose instances.

Parameters:

f	The first function
g	The second function

Returns:

a functor corresponding to f(g(x))

See also:

unary_compose::unary_compose

Definition at line 88 of file unary_compose.hh.

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Member Data Documentation

template<class UnaryFun1, class UnaryFun2>

UnaryFun1 utilmm::unary_compose< UnaryFun1, UnaryFun2 >::fun_1 [private]

Definition at line 35 of file unary_compose.hh.

template<class UnaryFun1, class UnaryFun2>

UnaryFun2 utilmm::unary_compose< UnaryFun1, UnaryFun2 >::fun_2 [private]

Definition at line 36 of file unary_compose.hh.

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The documentation for this struct was generated from the following file:

• unary_compose.hh