vector::size
Retorna o número de elementos no vetor.
size_type size( ) const;
Valor de retorno
O comprimento atual do vetor.
Exemplo
// vector_size.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>
int main( )
{
using namespace std;
vector <int> v1;
vector <int>::size_type i;
v1.push_back( 1 );
i = v1.size( );
cout << "Vector length is " << i << "." << endl;
v1.push_back( 2 );
i = v1.size( );
cout << "Vector length is now " << i << "." << endl;
}
Requisitos
Cabeçalho: <vector>
namespace: STD