Thread: an unexpected result.

So I have a piece of a program that creates 2D array of of characters of numbers 1 through a previously found number. Earlier in the code the total amount of numbers that needs to be cataloged is set as num_entries. I then do a basic for loop to convert integers into strings and load them into a new array(actually double pointer).

code:

Code:

int num_entries = gather_num_entries();
char *audio_nums[num_entries];
char tempchar[num_entries][2];

for(i = 0; i < num_entries; i = i + 1)
{
        sprintf(tempchar[i], "%d", i);
        audio_nums[i] = tempchar[i];    
}

given a num_entries amount of 5 this should replicate this code:

Code:

char *audio_nums[5] = {
    "0",
    "1",
    "2",
    "3",
    "4",
    "5"
};

the output is really confusing me, though. It works just fine up until double digit numbers then goes off in its own little direction.

result:

Code:

1
2
3
4
5
6
7
8
9
101112131415161718
1112131415161718
12131415161718
131415161718
1415161718
15161718
161718
1718
18

Can any of you spot something I'm missing?

Thanks
-System_159

The problem is here:

Code:

char tempchar[num_entries][2];

You can't fit "10" in a 2-character array (you need a '1', a '0', and a '/0'). So since %s prints until it sees a null character, it will print out all the 2-digit numbers at once.

Hey, that fixed it. Completely forgot about the null thing.

I knew it would be something odd like that. Now to tackle memory!

Thanks a bunch!

remember the first element in an array is numbered '0'

staggering insight there i know

not saying anyone is wrong bud, was not directing any reply to iMalc, i have been to his homepages link...like i am gonna say how wrong is that guy on array elements, haha i think not