// file: $(ECE_1111)/lectures/lecture_29/example.h
//

// revision history:
//  20240329 (JP): initial version
//

// make sure definitions are only made once
//
#ifndef EXAMPLE
#define EXAMPLE

// include system libraries
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <math.h>
#include <ctype.h>

// simple #define
//
#define STRING1          "A macro definition"
#define STRING2          "%0.20s\n"

// #define with math expressions
//
#define EXPRESSION1      1 + 2 + 3 + 4
#define EXPRESSION2      EXPRESSION1 + 10

// macros using #define
//
#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)))

// comparison functions
//
int compare_doubles(const void *a, const void *b);
int compare_chars (const void *a, const void *b);

// end of include file
//
#endif