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

Unary functors composition. More...

#include <utilmm/functional/unary_compose.hh>

Inheritance diagram for utilmm::unary_compose< UnaryFun1, UnaryFun2 >:

Collaboration diagram for utilmm::unary_compose< UnaryFun1, UnaryFun2 >:

Public Member Functions
	unary_compose (UnaryFun1 const &one, UnaryFun2 const &two)
	Constructor. More...
UnaryFun1::result_type	operator() (arg_param x) const
	Call operator. More...

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. More...

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@l.nosp@m.aas..nosp@m.fr

See also

utilmm::binary_compose_2

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

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

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

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

• utilmm/functional/unary_compose.hh