ID Number: Q47663
5.00 5.10 6.00 6.00a 6.00ax 7.00 | 5.00 5.10 6.00 6.00a
MS-DOS | OS/2
Summary:
The Microsoft C run-time library function printf() allows the width of
the format specifier to be supplied at run time. This is done with the
use of the * with the format specifier. This is mentioned on pages 460
and 461 of the "Microsoft C Optimizing Compiler Run-Time Library
Reference" version 5.1 manual. The following code sample demonstrates
this capability.
Sample Code
-----------
/* This program defines a procedure to print out a floating-point
number with variable width and precision.
*/
/* Compile options needed: none
*/
#include <stdio.h>
void print(int, int, float);
void main(void) {
print (10, 2, 1234.5678f);
print (9, 4, 1234.5678f);
print (5, 2, 1234.5678f);
}
void print(int w, int p, float value) {
printf ("Printf format :%*.*f\n", w, p, value);
printf ("Width = 0123456789012\n");
}
Additional reference words: 5.00 5.10 6.00 6.00a 6.00ax 5.0 5.1 6.0
6.0a 6.0ax 7.00 7.0