std::function::function – cppreference.com

std::function::function

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C++
 
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Function-Objekte
Funktionswrapper
function(C++11)
mem_fn(C++11)
bad_function_call(C++11)
Bindung
bind(C++11)
is_bind_expression(C++11)
is_placeholder(C++11)
_1, _2, _3, ...(C++11)
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ref
cref		(C++11)
(C++11)
Operatorwrapper
Verneinung
Veraltete Binder und Adapter
unary_function(veraltet)
binary_function(veraltet)
ptr_fun(veraltet)
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pointer_to_binary_function(veraltet)
mem_fun(veraltet)
mem_fun_t
mem_fun1_t
const_mem_fun_t
const_mem_fun1_t		(veraltet)
(veraltet)
(veraltet)
(veraltet)
mem_fun_ref(veraltet)
mem_fun_ref_t
mem_fun1_ref_t
const_mem_fun_ref_t
const_mem_fun1_ref_t		(veraltet)
(veraltet)
(veraltet)
(veraltet)
binder1st
binder2nd		(veraltet)
(veraltet)
bind1st
bind2nd		(veraltet)
(veraltet)
 
std::function
 
<tbody> </tbody>
function();
 (1) (seit C++11)
function( std::nullptr_t );
 (2) (seit C++11)
function( const function& f );
 (3) (seit C++11)
function( function&& f );
 (4) (seit C++11)
template< class F > function( F f );
 (5) (seit C++11)
template< class Alloc > function( std::allocator_arg_t, const Alloc& alloc );
 (6) (seit C++11)
template< class Alloc > function( std::allocator_arg_t, const Alloc& alloc, std::nullptr_t );
 (7) (seit C++11)
template< class Alloc > function( std::allocator_arg_t, const Alloc& alloc, const function& f );
 (8) (seit C++11)
template< class Alloc > function( std::allocator_arg_t, const Alloc& alloc, function&& f );
 (9) (seit C++11)
template< class F, class Alloc > function( std::allocator_arg_t, const Alloc& alloc, F f );
 (10) (seit C++11)
Erzeugt ein std::function aus einer Vielzahl von Quellen .
Original:
Constructs a std::function from a variety of sources.
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@ 1, 2, 7 @ Erstellen Sie eine leere Funktion .
Original:
@1, 2, 7@ Create an empty function.
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@ 3, 8 @ Erstellen Sie eine Kopie f .
Original:
@3, 8@ Create a copy of f.
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@ 4, 9 @ Verschieben Sie den Inhalt f in *this .
Original:
@4, 9@ Move the contents of f into *this.
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@ 5, 10 @ Verschieben Sie den Callable Objekt f in *this .
Original:
@5, 10@ Move the Callable object f into *this.
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Parameter

f -
das Funktions-Objekt verwendet, um *this initialisieren
Original:
the function object used to initialize *this
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alloc -
ein Allocator für interne Speicherzuweisung verwendet
Original:
an Allocator used for internal memory allocation
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Notes

6-10)

Konstrukteure, die einen ersten Parameter vom Typ std::allocator_arg_t haben müssen eine zweite Argument alloc des Typs, der ein A Allocator ist. Diese Zuweisung wird verwendet, um Speicher für alle internen Datenstrukturen, dass die function könnte verwenden zu schaffen .
Original:
Constructors that have a first parameter of type std::allocator_arg_t must have a second argument alloc of type A that is an Allocator. This allocator is used to create memory for any internal data structures that the function might use.
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5, 10) die Art F sollte CopyConstructible sein und das Objekt f sollte Callable sein. Die resultierende Funktion Objekt, das erstellt wird leer sein, wenn f ein NULL-Funktion Zeiger, ein NULL-Zeiger auf ein Element, oder wenn f ist ein std::function und !f == true. Das Argument f in die resultierende Funktion Objekt bewegt .
Original:
5, 10) The type F should be CopyConstructible and the object f should be Callable. The resulting function object that is created will be empty if f is a NULL function pointer, a NULL pointer to member, or if f is a std::function and !f == true. The argument f is moved into the resulting function object.
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Ausnahmen

1-2)

noexcept specification:  
<tbody> </tbody>
noexcept
  (seit C++11)

3-5)

(None)
Original:
(none)
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6-7)

noexcept specification:  
<tbody> </tbody>
noexcept
  (seit C++11)

8-10)

(None)
Original:
(none)
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Beispiel