Lambda< L, R, A > Class Template Reference

#include <Pt/Lambda.h>

Adapts a lambda or function object as a callable. More...

Inherits Callable< R, A... >.

Public Member Functions
template<typename T >
	Lambda (T &&lambda)
	Constructs from a lambda or function object.
virtual Callable *	clone () const=0
	Returns a copy of this instance. More...
virtual R	call (As... args) const=0
	Calls the callable entity and returns its result. More...
R	operator() (As... args) const
	Same as call().

Related Functions
ConstMethod< R, ClassT, As... >	callable (ClassT &object, R(BaseT::*method)(As...) const)
	Returns a ConstMethod object for the given object/method pair.
Function< R, As... >	callable (R(*function)(As...))
	Returns a Function wrapper for the given free/static function.
Method< R, ClassT, As... >	callable (ClassT &object, R(BaseT::*method)(As...))
	Returns a Method object for the given object/method pair.

Detailed Description

template<typename L, typename R, typename... A>
class Pt::Lambda< L, R, A >

The callable is stored by value and must therefore be copyable. For a non-generic lambda, the factory derives the Callable interface from operator(). Generic lambdas require an explicitly supplied signature.

Member Function Documentation

clone()

virtual Callable* clone

pure virtualinherited

A copy of the instance is created with new is returned. Ownership is transfered to the caller, who has to delete it.

call()

virtual R call ( As...  args ) const

pure virtualinherited

This is the primary non-virtual entry point used by Delegate and other callers that need the return value. All derived classes must implement this.

invoke()

virtual void invoke ( As...  args ) const

pure virtualinherited

The passed arguments must match the template parameters.

Implements Invokable< As... >.