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std::vector::assign – cppreference.com

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void assign( size_type count, const T& value );

 (1)

template< class InputIt > void assign( InputIt first, InputIt last );

 (2)

Ersetzt den Inhalt des Behälters .

Original:

Replaces the contents of the container.

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1)

ersetzt den Inhalt mit count Kopien Wert value

Original:

replaces the contents with count copies of value value

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2)

ersetzt den Inhalt mit Kopien von den im Bereich [first, last)

Original:

replaces the contents with copies of those in the range [first, last)

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Parameter

count -

die neue Größe des Behälters

Original:

the new size of the container

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value -

der Wert auf Elemente des Behälters mit initialisieren

Original:

the value to initialize elements of the container with

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first, last -

der Bereich zum Kopieren der Elemente aus

Original:

the range to copy the elements from

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Type requirements
-InputIt must meet the requirements of InputIterator.

Komplexität

1)

linear in count

Original:

linear in count

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2)

linear in Abstand zwischen first und last

Original:

linear in distance between first and last

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Beispiel

Der folgende Code verwendet assign um mehrere Zeichen zu einem std::vector<char> hinzu:

Original:

The following code uses assign to add several characters to a std::vector<char>:

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#include <vector>
#include <iostream>
 
int main()
{
    std::vector<char> characters;
 
    characters.assign(5, 'a');

    for (char c : characters) {
        std::cout << c << '\n';
    } 

    return 0;
}

Output:

Siehe auch