CppCMS: booster::callback< Result(Params...)> Class Template Reference

This is Booster's implementation of std::tr1::callback/boostercallback. More...

#include <booster/booster/callback.h>

List of all members.

Public Types
typedef Result	result_type
Public Member Functions
	callback ()
template<typename F >
	callback (F func)
	callback (callback const &other)
template<typename F >
callback const &	operator= (F func)
callback const &	operator= (callback const &other)
result_type	operator() (Params...params) const
bool	empty () const
	operator bool () const
void	swap (callback &other)

Detailed Description

template<typename Result, typename... Params>
class booster::callback< Result(Params...)>

This is Booster's implementation of std::tr1::callback/boostercallback.

This callback is created from generic object that can be "called" i.e. a class with operator() or callback pointer that has same signature as the callback.

See: http://www.boost.org/doc/html/function.html

Notes:

this code is not taken from Boost and has slightly different interface.
as most of compilers do not support Variadic templates yet, this class is explicitly specialized for Params of size 0 to 8. So maximal amout of parameters that can be used is 8.

Member Typedef Documentation

template<typename Result , typename... Params>

typedef Result booster::callback< Result(Params...)>::result_type

Type of result, for use with boost::bind

Constructor & Destructor Documentation

template<typename Result , typename... Params>

booster::callback< Result(Params...)>::callback ( )

Default constructor, creates an empty callbacks

template<typename Result , typename... Params>

template<typename F >

booster::callback< Result(Params...)>::callback ( F func )

Creates a callback from a callbackal func of type F. func should be copyable. It is copied and stored inside callback object.

template<typename Result , typename... Params>

booster::callback< Result(Params...)>::callback ( callback< Result(Params...)> const & other )

Copy callback, Copies underlying callbackal object.

Member Function Documentation

template<typename Result , typename... Params>

bool booster::callback< Result(Params...)>::empty ( ) const

Return true if the callback is empty

template<typename Result , typename... Params>

booster::callback< Result(Params...)>::operator bool ( ) const

Returns true if the callback is not empty

template<typename Result , typename... Params>

result_type booster::callback< Result(Params...)>::operator() ( Params... params ) const

Calls underling callbackal object. If the callback is empty, throws bad_callback_call.

template<typename Result , typename... Params>

callback const& booster::callback< Result(Params...)>::operator= ( callback< Result(Params...)> const & other )

Assignment operator. Copies underlying callbackal object.

template<typename Result , typename... Params>

template<typename F >

callback const& booster::callback< Result(Params...)>::operator= ( F func )

Assign a callbackal func of type F. func should be copyable. It is copied and stored inside callback object.

template<typename Result , typename... Params>

void booster::callback< Result(Params...)>::swap ( callback< Result(Params...)> & other )

Swaps two callbackal object. Does not throw.

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

booster/callback.h