Formatting the Value of a Formatted C Input or Output Function
The behavior of the fprintf(), sprintf(), vfprintf(), vprintf() and vsprintf() functions
is the same as the printf() function. The behavior
of the fscanf() and sscanf() functions
is the same as the scanf() function.
To control the format of the output use the flags, width and precision fields
of the printf() function.
To control the format of the scanf() function
use the * and width fields
of the scanf() function. See ILE C/C++ Runtime Library Functions for information
on these fields.