FixedSizeFunction< len, Ret(Args...)> Class Template Reference

A type similar to std::function that holds a callable object. More...

#include <juce_FixedSizeFunction.h>

Public Member Functions
	FixedSizeFunction () noexcept=default
	Create an empty function.
	FixedSizeFunction (std::nullptr_t) noexcept
	Create an empty function.
	FixedSizeFunction (const FixedSizeFunction &)=delete
template<typename Callable , typename Fn = Decay<Callable>, IntIfValidConversion< Callable > = 0>
	FixedSizeFunction (Callable &&callable)
	Forwards the passed Callable into the internal storage buffer.
	FixedSizeFunction (FixedSizeFunction &&other) noexcept
	Move constructor.
template<size_t otherLen, std::enable_if_t<(otherLen< len), int > = 0>
	FixedSizeFunction (FixedSizeFunction< otherLen, Ret(Args...)> &&other) noexcept
	Converting constructor from smaller FixedSizeFunctions.
FixedSizeFunction &	operator= (std::nullptr_t) noexcept
	Nulls this instance.
FixedSizeFunction &	operator= (const FixedSizeFunction &)=delete
template<typename Callable , IntIfValidConversion< Callable > = 0>
FixedSizeFunction &	operator= (Callable &&callable)
	Assigns a new callable to this instance.
template<size_t otherLen, std::enable_if_t<(otherLen< len), int > = 0>
FixedSizeFunction &	operator= (FixedSizeFunction< otherLen, Ret(Args...)> &&other) noexcept
	Move assignment from smaller FixedSizeFunctions.
FixedSizeFunction &	operator= (FixedSizeFunction &&other) noexcept
	Move assignment operator.
	~FixedSizeFunction () noexcept
	Destructor.
Ret	operator() (Args... args) const
	If this instance is currently storing a callable object, calls that object, otherwise throws std::bad_function_call.
	operator bool () const noexcept
	Returns true if this instance currently holds a callable.

Detailed Description

template<size_t len, typename Ret, typename... Args>
class FixedSizeFunction< len, Ret(Args...)>

A type similar to std::function that holds a callable object.

Unlike std::function, the callable object will always be stored in a buffer of size len that is internal to the FixedSizeFunction instance. This in turn means that creating a FixedSizeFunction instance will never allocate, making FixedSizeFunctions suitable for use in realtime contexts.

Constructor & Destructor Documentation

FixedSizeFunction() [1/6]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction ( )

defaultnoexcept

Create an empty function.

FixedSizeFunction() [2/6]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction ( std::nullptr_t )

noexcept

Create an empty function.

FixedSizeFunction() [3/6]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction ( const FixedSizeFunction< len, Ret(Args...)> & )

delete

FixedSizeFunction() [4/6]

template<size_t len, typename Ret , typename... Args>

template<typename Callable , typename Fn = Decay<Callable>, IntIfValidConversion< Callable > = 0>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction

(

Callable &&

callable

)

Forwards the passed Callable into the internal storage buffer.

References jassert.

FixedSizeFunction() [5/6]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction ( FixedSizeFunction< len, Ret(Args...)> && other )

noexcept

Move constructor.

FixedSizeFunction() [6/6]

template<size_t len, typename Ret , typename... Args>

template<size_t otherLen, std::enable_if_t<(otherLen< len), int > = 0>

FixedSizeFunction< len, Ret(Args...)>::FixedSizeFunction ( FixedSizeFunction< otherLen, Ret(Args...)> && other )

noexcept

Converting constructor from smaller FixedSizeFunctions.

~FixedSizeFunction()

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::~FixedSizeFunction ( )

noexcept

Destructor.

Member Function Documentation

operator=() [1/5]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction & FixedSizeFunction< len, Ret(Args...)>::operator= ( std::nullptr_t )

noexcept

Nulls this instance.

operator=() [2/5]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction & FixedSizeFunction< len, Ret(Args...)>::operator= ( const FixedSizeFunction< len, Ret(Args...)> & )

delete

operator=() [3/5]

template<size_t len, typename Ret , typename... Args>

template<typename Callable , IntIfValidConversion< Callable > = 0>

FixedSizeFunction & FixedSizeFunction< len, Ret(Args...)>::operator=

(

Callable &&

callable

)

Assigns a new callable to this instance.

operator=() [4/5]

template<size_t len, typename Ret , typename... Args>

template<size_t otherLen, std::enable_if_t<(otherLen< len), int > = 0>

FixedSizeFunction & FixedSizeFunction< len, Ret(Args...)>::operator= ( FixedSizeFunction< otherLen, Ret(Args...)> && other )

noexcept

Move assignment from smaller FixedSizeFunctions.

operator=() [5/5]

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction & FixedSizeFunction< len, Ret(Args...)>::operator= ( FixedSizeFunction< len, Ret(Args...)> && other )

noexcept

Move assignment operator.

operator()()

template<size_t len, typename Ret , typename... Args>

Ret FixedSizeFunction< len, Ret(Args...)>::operator()

(

Args...

args

)

const

If this instance is currently storing a callable object, calls that object, otherwise throws std::bad_function_call.

operator bool()

template<size_t len, typename Ret , typename... Args>

FixedSizeFunction< len, Ret(Args...)>::operator bool ( ) const

explicitnoexcept

Returns true if this instance currently holds a callable.

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

• juce_FixedSizeFunction.h