Revisiting printf()

In previous chapters, whenever we printed the output of values to the console, we used relatively simple printf() formatting. However, printf() provides a very rich set of format specifiers for unsigned integers, pointers, signed integers, floats, doubles, characters, and strings. The programs given in this chapter will not provide an exhaustive example of every possible format specifier, nor of every possible combination of format specifiers. The programs provided are intended to serve as a starting point for your own continued experimentation.

Understanding the general format specifier form

So far, we have seen, for the most part, the simplest format specifier, %<x>, or occasionally even %<n><x>, where <x> is an output conversion type and <n> is the field width into which the value is printed. Depending on the value, the formatted output...