vector::clear
Erases the elements of the vector.
void clear( );
Example
// vector_clear.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>
using namespace std;
int main( )
{
vector <int> vec;
vec.push_back(10);
vec.push_back(20);
vec.push_back(30);
cout << "The size of vec is " << vec.size() << endl;
cout << "The capacity of vec is " << vec.capacity() << endl;
vec.clear();
cout << "The size of vec after clearing is " << vec.size() << endl;
cout << "The capacity of vec after clearing is " << vec.capacity() << endl;}
The size of vec is 3 The capacity of vec is 3 The size of vec after clearing is 0 The capacity of vec after clearing is 3
Requirements
Header: <vector>
Namespace: std