/* strings3_copy_concat_length.c */
#include <stdio.h>
#include <string.h>

int main()
{
    char str1[12] = "Hello";
    char str2[] = "World";
    char str3[11];
    
    printf("str1 contains \"%s\"\n",str1);
    printf("str2 contains \"%s\"\n",str2);
    
    strcat(strcat(str1, " "), str2);
    
    printf("A space and str2 concantenated to str1 is \"%s\"\n", str1);
    
    printf("The length of the string is %d characters. \n", strlen(str1));
    
    printf("Note that the \\0 at the end of the string is not counted.\n");
    
    return 0;
}