RWTFunctor< R(As...)> Class Template Reference

A generic function object. More...

#include <rw/functor/RWTFunctor.h>

Public Member Functions
	RWTFunctor ()
	RWTFunctor (RWStaticCtor)
	RWTFunctor (const RWTFunctor< R(As...)> &other)
template<typename C >
	RWTFunctor (C callable)
R	operator() (As &&...a) const
RWTFunctor< R(As...)> &	operator= (const RWTFunctor< R(As...)> &other)
template<typename C >
RWTFunctor< R(As...)> &	operator= (C callable)

Detailed Description

template<typename R, typename As...>
class RWTFunctor< R(As...)>

RWTFunctor represents a generic function object that can be called with As... parameters and returns R.

Note

RWTFunctor supports calling functions with between 0 and 10 parameters, inclusive.

Example

#include <rw/functor/RWTFunctor.h>

void foo(int x) {
    std::cout << "x is " << x << std::endl;
}

int main() {
    // Associate the functor with the global function 'foo'
    RWTFunctor<void(int)> functor = foo;

    // Invoke the functor.
    functor(42);

    return 0;
}

Constructor & Destructor Documentation

template<typename R , typename As... >

RWTFunctor< R(As...)>::RWTFunctor

(

)

Constructs an invalid function object. Self will need to be associated with a function or function object before it can be invoked.

template<typename R , typename As... >

RWTFunctor< R(As...)>::RWTFunctor

(

RWStaticCtor

)

Constructs an invalid function object. This constructor assumes the object is constructed with static storage duration and does not explicitly initialize any of its members.

template<typename R , typename As... >

RWTFunctor< R(As...)>::RWTFunctor

(

const RWTFunctor< R(As...)> &

other

)

Copy constructor. Binds self to the functor body instance of other.

template<typename R , typename As... >

template<typename C >

RWTFunctor< R(As...)>::RWTFunctor

(

C

callable

)

Constructs a function object associated with callable. When operator() is invoked, callable will be called.

Member Function Documentation

template<typename R , typename As... >

R RWTFunctor< R(As...)>::operator()

(

As &&...

a

)

const

Invokes the callable associated with self, passing parameters a and returning the result. If the underlying callable has not been set, throws RWTHRInvalidPointer.

template<typename R , typename As... >

RWTFunctor<R(As...)>& RWTFunctor< R(As...)>::operator=

(

const RWTFunctor< R(As...)> &

other

)

Assignment operator. Binds self to the functor body instance of other.

template<typename R , typename As... >

template<typename C >

RWTFunctor<R(As...)>& RWTFunctor< R(As...)>::operator=

(

C

callable

)

Assignment operator. When operator() is invoked, callable will be called.