Exercise 12-1 - CBD page 424 - Lone Leth Thomsen

/* Kelly & Pohl Exercise 12.1, p. 424 */
/*                                    */
/* Lone Leth Thomsen, 11. April 2003  */

#include <string.h>
#include <stdio.h>

struct food {
	char name[15];
	int portion_weight;
	int calories;
};

struct food meal[10];

int main(int argc, char* argv[])
{

	meal[0].name[0] = 'a';
	meal[0].name[1] = 'p';
	meal[0].name[2] = 'p';
	meal[0].name[3] = 'l';
	meal[0].name[4] = 'e';
	meal[0].name[5] = '\0';
	meal[0].portion_weight = 4;
	meal[0].calories = 200;


	return 0;
}

	struct food { char name[15]; int portion_weight; int calories; };
	define the structure food with members name, portion_weight and calories. The tag name of this structure is food.

 

	struct food meal[10];
	declares an array meal[10] of this structure.

 

	meal[0].name[0] = 'a'; meal[0].name[1] = 'p'; meal[0].name[2] = 'p'; meal[0].name[3] = 'l'; meal[0].name[4] = 'e'; meal[0].name[5] = '\0'; meal[0].portion_weight = 4; meal[0].calories = 200;
	assign values to the three members of meal[0]. The name is divided into individual characters, including the end-of-string character '\0'. We might, as well assign meal[0].name to "apple". However, in order to do that when name is declared as char name[15], we will have to do strcpy(name,"apple").