C++ Primer, Fifth Edition

3.2. Library string Type

A string is a variable-length sequence of characters. To use the string type, we must include the string header. Because it is part of the library, string is defined in the std namespace. Our examples assume the following code:

#include <string>using std::string;

This section describes the most common string operations; § 9.5 (p. 360) will cover additional operations.

Note

In addition to specifying the operations that the library types provide, the standard also imposes efficiency requirements on implementors. As a ...