Сортировка строк - C++

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#define SIZE 256
#define DELIMS ",.\n"
 
int main()
{
    char buf[SIZE];
    char* pword;
    char words[30][6];
    size_t cnt;
    size_t i;
    
    puts("Input string:");
    fgets(buf, SIZE, stdin);
    
    memset(words, '\0', 30 * 6 * sizeof(char));
    
    for(pword = strtok(buf, DELIMS), cnt = 0; 
        pword; pword = strtok(NULL, DELIMS), ++cnt)
        strncpy(words[cnt], pword, 5);
        
    qsort(words, cnt, sizeof(char[6]), 
        (int (*) (const void*, const void*)) strcmp);
    puts("Sorted words:");
    for(i = 0; i < cnt; ++i)
        printf("%02u: \"%s\"\n", i + 1, words[i]);
        
    exit(0);
}