Thread: qsort() and strings/numbers

  1. #1
    Registered User
    Join Date
    Jan 2003
    Posts
    52

    qsort() and strings/numbers

    Hi all!
    someone could help me to sort a string?

    char strings[10000][100];

    The strings have letters and numbers. Ex.:
    256_test
    test.435.433

    Code:
    /* qsort example */
    #include <stdio.h>
    #include <stdlib.h>
    
    int values[] = { 40, 10, 100, 90, 20, 25 };
    
    int compare (const void * a, const void * b)
    {
         return ( *(int*)a - *(int*)b );
    }
    
    int main ()
    {
         int * pItem;
         int n;
         qsort (values, 6, sizeof(int), compare);
         for (n=0; n<6; n++)
         {
            printf ("%d ",values[n]);
         }
         return 0;
    }
    in this example (I found on google) I didn't understand the function compare. I think this one is just for numbers. What should I do to sort string and numbers?
    Thank you in advance!

  2. #2

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