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std::uninitialized_fill

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Dynamische Speicherverwaltung
Low-Level-Speicherverwaltung
Zuweiser
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Allocators
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allocator
allocator_traits(C++11)
allocator_arg_t(C++11)
allocator_arg(C++11)
uses_allocator(C++11)
scoped_allocator_adaptor(C++11)
Initialisierter Speicher
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Uninitialized storage
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uninitialized_copy
uninitialized_copy_n(C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Intelligente Zeiger
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Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(veraltet)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage Collection Unterstützung
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Garbage collection support
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declare_reachable(C++11)
undeclare_reachable(C++11)
declare_no_pointers(C++11)
undeclare_no_pointers(C++11)
pointer_safety(C++11)
get_pointer_safety(C++11)
Verschiedenes
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C-Bibliothek
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C Library
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Defined in header <memory>
template< class ForwardIt, class T >
void uninitialized_fill( ForwardIt first, ForwardIt last, const T& value )
Initialisiert einen uninitialisierten Speicherbereich, der durch [first, last) begrenzt wird, mit dem übergebenen Wert value. Die Elemente im definierten Bereich werden mit Hilfe des Kopierkonstruktors initialisiert.
Original:
Copies the given value value to an uninitialized memory area, defined by the range [first, last). The elements in the uninitialized area are constructed using copy constructor.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

first, last -
definiert den zu initialisierenden Bereich
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the range of the elements to initialize
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value -
der Wert, mit dem die Elemente belegt werden
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the value to construct the elements with
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Type requirements
-
ForwardIt must meet the requirements of ForwardIterator.

[Bearbeiten] Rückgabewert

(None)
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(none)
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[Bearbeiten] Komplexität

Linear im Abstand first und last
Original:
Linear in the distance between first and last
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[Bearbeiten] Mögliche Implementierung

template<class ForwardIt, class T>
void uninitialized_fill(ForwardIt first, 
                        ForwardIt last,
                        const T& value)
{
    typedef typename std::iterator_traits<ForwardIt>::value_type Value;
    for (; first != last; ++first) {
        ::new (static_cast<void*>(&*first)) Value(value);
    }
}

[Bearbeiten] Beispiel

[Bearbeiten] Siehe auch

kopiert ein Objekt in einem nicht initialisierten Bereich des Speichers
Original:
copies an object to an uninitialized area of memory
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(Funktions-Template) [edit]