vector::clear
Erases the elements of the vector.
void clear( );
Example
// 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
Requirements
Header: <vector>
Namespace: std