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std::vector::erase - cppreference.com

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iterator erase( iterator pos ); iterator erase( const_iterator pos );

 (1) (fino al c++11)
(dal C++11)

iterator erase( iterator first, iterator last ); iterator erase( const_iterator first, const_iterator last );

 (2) (fino al c++11)
(dal C++11)

Rimuove gli elementi specificati dal contenitore.

Original:

Removes specified elements from the container.

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1)

Rimuove l'elemento in pos.

Original:

Removes the element at pos.

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2)

Rimuove gli elementi della gamma [first; last).

Original:

Removes the elements in the range [first; last).

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Iterators and references to the erased elements and to the elements between them and the end of the container are invalidated.

Parametri

pos -

iteratore all'elemento da rimuovere

Original:

iterator to the element to remove

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first, last -

intervallo di elementi da rimuovere

Original:

range of elements to remove

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Valore di ritorno

iteratore dopo l'ultimo elemento rimosso.

Original:

iterator following the last removed element.

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Esempio

#include <vector>
#include <iostream>


int main( )
{
    std::vector<int> c{0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
    for (auto &i : c) {
        std::cout << i << " ";
    }
    std::cout << '\n';

    c.erase(c.begin());

    for (auto &i : c) {
        std::cout << i << " ";
    }
    std::cout << '\n';

    c.erase(c.begin()+2, c.begin()+5);

    for (auto &i : c) {
        std::cout << i << " ";
    }
    std::cout << '\n';
}

Output: 

0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 6 7 8 9

Complessità

1) linear in the distance between position and last.

2) linear in distance between position and the end of the container.

Vedi anche

cancella il contenuto

Original:

clears the contents

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