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vector::clear

Erases the elements of the vector.

void clear( );

// vector_clear.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;   
   vector <int> v1;
   
   v1.push_back( 10 );
   v1.push_back( 20 );
   v1.push_back( 30 );

   cout << "The size of v1 is " << v1.size( ) << endl;
   v1.clear( );
   cout << "The size of v1 after clearing is " << v1.size( ) << endl;
}
The size of v1 is 3
The size of v1 after clearing is 0

Header: <vector>

Namespace: std

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