Move, copy, and destruction operations. More...

Collaboration diagram for Special Member Functions:

Functions
	Recognition::Magic::Magic (Magic &&other) noexcept
	Move constructor.
	Recognition::Magic::Magic (const Magic &)=delete
	Deleted copy constructor.
Magic &	Recognition::Magic::operator= (Magic &&other) noexcept
	Move assignment operator.
Magic &	Recognition::Magic::operator= (const Magic &)=delete
	Deleted copy assignment operator.
	Recognition::Magic::~Magic ()
	Destructor.

Detailed Description

Move, copy, and destruction operations.

Special member functions controlling Magic lifetime and resource ownership.

Function Documentation

◆ Magic() [1/2]

Recognition::Magic::Magic ( const Magic & )

delete

Deleted copy constructor.

Magic instances cannot be copied because they own unique libmagic resources. Use move semantics instead.

◆ Magic() [2/2]

Recognition::Magic::Magic ( Magic && other )

noexcept

Move constructor.

Transfers ownership of the Magic instance from other to this object. After the move, other is left in a closed state and must be reopened before use.

Parameters

[in,out] other The Magic instance to move from. Left closed after move.

Magic magic1{Magic::Flags::Mime};
Magic magic2{std::move(magic1)};  // magic1 is now closed
// magic2 is valid, magic1 is not

Since: 10.0.0

◆ operator=() [1/2]

Magic & Recognition::Magic::operator= ( const Magic & )

delete

Deleted copy assignment operator.

Magic instances cannot be copied because they own unique libmagic resources. Use move semantics instead.

◆ operator=() [2/2]

Magic & Recognition::Magic::operator= ( Magic && other )

noexcept

Move assignment operator.

Transfers ownership of the Magic instance from other to this object. Any existing resources in this object are released first. After the move, other is left in a closed state.

Parameters

[in,out] other The Magic instance to move from. Left closed after move.

Returns: Reference to this object.

Since: 10.0.0

◆ ~Magic()

Recognition::Magic::~Magic ( )

default

Destructor.

Automatically releases all libmagic resources. Equivalent to calling Close().

Since: 10.0.0