Microsoft Programmer's Library 1.3/Microsoft-Programers-Library-v1.3.iso/sampcode/qc/qc25/macro.c

C/C++ Source or Header | 1989-11-15 | 193 b | 11 lines

/* MACRO.C: Demonstrate macros. */

#include <stdio.h>
#define ABS(value)  ( (value) >= 0 ? (value) : -(value) )

main()
{
   int val = -20;
   printf( "result = %d\n", ABS(val) );
}