C++ Primer, Fifth Edition

3.3.3. Other vector Operations

In addition to push_back, vector provides only a few other operations, most of which are similar to the corresponding operations on strings. Table 3.5 lists the most important ones.

Table 3.5. vector Operations

We access the elements of a vector the same way that we access the characters in a string: through their position in the vector. For example, we can use a range for (§ 3.2.3, p. 91) to process all the elements in a vector:

vector<int> v{1,2,3,4,5,6,7,8,9};for (auto &i : v)     // for each element in v (note: ...