MACRO
/************************************************************//* */
/* MACRO DEMONSTRATION */
/* */
/************************************************************/
#include
#define STRING1 "A macro definition\n"
#define STRING2 "must be all on one line!!\n"
#define EXPRESSION 1 + 2 + 3 + 4
#define EXPR2 EXPRESSION + 10
#define ABS(x) ((x) < 0) ? -(x) : (x) #define MAX(a,b) (a < b) ? (b) : (a) #define BIGGEST(a,b,c) (MAX(a,b) < c) ? (c) : (MAX(a,b)) /************************************************************/ main () /* No #definitions inside functions! */ { printf (STRING1); printf (STRING2); printf ("%d\n",EXPRESSION); printf ("%d\n",EXPR2); printf ("%d\n",ABS(-5)); printf ("Biggest of 1 2 and 3 is %d",BIGGEST(1,2,3)); }
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