Example for http://blog.surgut.co.uk/2015/08/go-enjoy-python

/*
 * Reference: http://blog.surgut.co.uk/2015/08/go-enjoy-python3.html
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define LEN 12

int main(int argc, char *argv[]) {
    char res[LEN+1];

    if (argc != 2) {
        fprintf(stderr, "Usage: %s string\n", argv[0]);
        exit(EXIT_FAILURE);
    }

    /*
     * strncat() onto an empty string behaves the way
     * strncpy() arguably _should_ behave
     */
    res[0] = '\0';
    strncat(res, argv[1], LEN);
    puts(res); /* or printf("%s\n", res) if you prefer */
    return 0;  /* optional in C99 or later */
}