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    std::unique_ptr::operator[]

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    C++
     
    Utilities-Bibliothek
     
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    Intelligente Zeiger
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    unique_ptr(C++11)
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    std :: unique_ptr
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    <tbody> </tbody>
    T& operator[](size_t i) const;
    		 (seit C++11)
    operator[] ermöglicht den Zugriff auf Elemente eines Arrays von einem unique_ptr geschafft .
    Original:
    operator[] provides access to elements of an array managed by a unique_ptr.
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    Der Parameter i ist erforderlich, um eine gültige Array-Index sein .
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    The parameter i is required to be a valid array index.
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    Parameter

    i -
    der Index des Elements zurückgebracht werden
    Original:
    the index of the element to be returned
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    Rückgabewert

    Gibt das Element am Index i, also get()[i] .
    Original:
    Returns the element at index i, i.e. get()[i].
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    Beispiel

    #include <iostream>
#include <memory>

int main() 
{
    const int size = 10; 
    std::unique_ptr<int[]> fact(new int[size]);

    for (int i = 0; i < size; ++i) {
        fact[i] = (i == 0) ? 1 : i * fact[i-1];
    }

    for (int i = 0; i < size; ++i) {
        std::cout << i << ": " << fact[i] << '\n';
    }
}

    Output: 

    0: 1
1: 1
2: 2
3: 6
4: 24
5: 120
6: 720
7: 5040
8: 40320
9: 362880

    Siehe auch
    liefert einen Zeiger auf das verwaltete Objekt
    Original:
    returns a pointer to the managed object
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    (öffentliche Elementfunktion) [edit]