13.7. Stream Format States and Stream Manipulators
Various stream manipulators can be used to specify the kinds of formatting to be performed during stream-I/O operations. Stream manipulators control the output’s format settings. Figure 13.12 lists each stream manipulator that controls a given stream’s format state. All these manipulators belong to class
ios_base. We show examples of most of these stream manipulators in the next several sections.