Programming in C++, 2nd Edition

Vectors 795

Iterators are used by the algorithms to carry out operations. Iterators are smart pointers. They

are allowed to contain values that indicate one of the statuses of iterators as described in Table

20.10. Each iterator type supports all the attributes listed in Table 20.9 and shown in Figure 20.3.

Iterators can be incremented, decremented, and their limits are up to the capacity of the contain-

ers. Containers have member functions that return iterators.

20.3 Write a program to transverse list using iterator.

#include<iostream>

#include<list>

using namespace std;

typedef list<int> num_list;

int main()

{

num_list num;

for (int j=0;j<=5;++j) ...