How to use qsort for an array of strings?

Question

#include 
#include 
#include 

int sortstring(const void *str1, const void *str2) {
    const char *rec1 = str1;
    c         


        

Answer 1

This line is incorrect.

    qsort(lines, 200, sizeof(char), sortstring);

Change it to

    qsort(lines, 200, sizeof(char*), sortstring);