set::clear
Apaga todos os elementos de um dataset.
void clear( );
Exemplo
// set_clear.cpp
// compile with: /EHsc
#include <set>
#include <iostream>
int main( )
{
using namespace std;
set <int> s1;
s1.insert( 1 );
s1.insert( 2 );
cout << "The size of the set is initially " << s1.size( )
<< "." << endl;
s1.clear( );
cout << "The size of the set after clearing is "
<< s1.size( ) << "." << endl;
}
Requisitos
Cabeçalho: <set>
namespace: STD