ok my example program is almost complete except when i add another
object to the array and press '2' (print)  it prints out half the
array (the string part) along with some funky letters.  I thought
since you have helped me a lot I would post this as a new question.

Thank you 
ryan


#include<stdio.h> /* input/output header */
#include<string.h> /* some basic string command */

int restore(char a[][19], int b[], int *number);
int print(char a[][19], int b[], int *number);
int add(char a[][19], int b[], char product[],int howmuch, int *number);
int main(void)
{
	
	/*int numbers, functions, characters, etc */
	char item[100][19], product[19];
	int quantity[100];
	int i;
    int number=0,howmuch=0;    
	
	printf("1. To read chars.\n");
	printf("2. To print chars.\n");
	printf("3. To add chars.\n");
	while (1) {
	scanf("%d",&i);
	
        

	   if (i == 1) {
		   restore(item,quantity,&number);
		   i=0; }
	   if (i == 2) {
		    print(item,quantity,&number);
			i=0; }
	   if (i == 3) {
			scanf("%s%d",product,&howmuch);
		    add(item,quantity, product,howmuch,&number);
			i=0; }
	   }
    
	return 0;
}

int print(char a[][19], int b[], int *number) {
	int j;
	for (j = 0;  j < *number;  j++) 
		printf( "%s  %d ", a[j], b[j]);
	return *number;
}

int restore(char a[][19], int b[], int *number) {
    int j;
	FILE * infile;
	infile = fopen( "ryan.txt","r" );
	fscanf( infile, "%d", number); 
	for (j = 0;  j < *number;  j++) 
		fscanf( infile, "%s %d ", a[j], &b[j]);
	printf("Array Created! YAY!\n");
	return *number;
}

int add(char a[][19], int b[], char product[],int howmuch, int *number) {
	if (*number == 0)
		printf("Error: you must restore an order first\n");
	(*number)++;
	strcpy(a[*number], product);
	b[*number] = howmuch;
	return *number;
}

---

Clarification of Question by fikal-ga on 22 Nov 2004 06:05 PST

im still lost, sorry.

for my program i run it like this.  1. creates the array.  2. print
(works fine) then i hit 3. followed by <name> <numbers> then i reprint
and my newly created item is weird looking.

Something is not right with my add function.  I changed the print to
an actual number and i still get something printing out like this for
the added array.  |||||||||||<item_name>  -834345335

-Ryan

Well not sure but I think you have a few problems with that c.

Possibly a out by one error, in the print function.

If number is the last item , then how can we print it
with  j < number

int print(char a[][19], int b[], int *number) {
	int j;
	for (j = 0;  j < *number;  j++) 
		printf( "%s  %d ", a[j], b[j]);
	return *number;

Also if you don't do a restore first but add items ,
number=1 then if you print it out, you would get what ever
junk was in the array for  a[0] and b[0].
Also your added item a[1] b[1] would exist but not print out because
of  j < number .

i agree with that, but how would i fix that i < *number statement ?

I think you need to add a space between the %s and %d here:

scanf("%s%d",product,&howmuch); becomes
scanf("%s %d",product,&howmuch);

I tried it without the space and it produced strange results, so that
may be the problem.

Hmm.. nevermind, forget I said that. I was doing something else wrong.

In your restore function, the last entry created is a[*number - 1],
but in your add function, you add one to *number first then assign to
a[*number], so it skips a row. The *number++; needs to be just above
the return statement.

strcpy(a[*number], product);
b[*number] = howmuch;
(*number)++;
return *number;

that is correct!  amazing how putting it in the wrong place has caused
me so much frustration.  This example will now help me finish my large
program.  Thank you again,

Ryan

No problem. :-)