#include <stdio.h>
#include <stdlib.h>             /* for qsort */
#include <string.h>

char *names[] = {   /* An array of pointers to string literals */
    "Mary",
    "Billy",
    "Zoe",
    "Peter",
    "Nigel",
    "Sandeep",
    "Alison"
};

int textcmp(const void *a, const void *b) {
    return strcmp(*(const char **)a, *(const char **)b);
}

main() {
    int i;
    const int count = sizeof names / sizeof names[0]; /* no. of elements */
    qsort(names, count, sizeof names[0], textcmp);
    for (i=0; i<7; i++) {
        printf("%s\n", names[i]);
    }
    return 0;
}