Thread: string parsing

Hi,

I'm doing a small string parser, the main problem is that I didn't want to create 10 different char arrays, so I did with only one. It's causing me a buffer overflow...

Code:

#include <stdio.h>

int main()
{
    char buff[BUFSIZ], *words[];

    printf("Enter the numbers (separated by space):\n");
    fgets(buff, sizeof(buff), stdin);
    sscanf(buff, "%s %s %s %s %s %s %s %s %s %s", words[0], words[1], words[2], 
           words[3], words[4], words[5], words[6], words[7], words[8], words[9]);

    int i;
    for(i=0; i > 10; i++)
       printf("The %d word is %s\n", i, words[i]);

    getchar();
    return 0;
}

It still dosen't work... Altough there's no overflow, when you hit enter nothing happens...

Code:

for(i=0; i > 10; i++)

Are you sure that is what you mean?

Oh I see... Thanks

Another question:

Wich function would I use to see if two strings share the same charset?

like: agdf and fadg share the same charset

I don't think there's a built-in C function to do this, but you could code one yourself, in fact, I had to do this just a small while ago (like, yesterday?). I used a thing where I squared the ASCII value of each character and then summed it into a small "checksum", and then checked results to see if they were the same. Squaring or cubing or whatever reduces the risk of like, having some of 'abc' matching 'bbb', just because they have to same un-squared ASCII sums. For a more reliable method, you could store each in an int array of [26] and then every time an 'a' occurs you would increment iArray[0] and with 'b' iArray[1]. Naturally this method is considerably more "costly", but it'll definitely be much more reliable.

Edit: here's the code I used http://pastebin.com/341079 uses vectors and fstreams and ostreams and other nasty things that really aren't C, but just some concept eh?

New link... http://pastebin.com/346434

Bump?

If you actually managed to move your little head 3 inches you would see my question.

You really think you rock don't you?

Which question are you referring to?

this one?

>> Wich function would I use to see if two strings share the same charset?

or this one?

>> Would my function be correct then:[?]

or this one?

>> Tonto how did you manage to copy and paste it all in under 30 seconds?

None of the above seem to help me at all - but hey, maybe its just me. Oh, that's right, quzah did not know what you wanted either. You might try asking a specific question, and then you just might get a specific answer.

edit:: oh I missed that fourth one - good eyes quzah

I hate the funny ones.