/**
 * Compare two string using strcmp
 * stringcmp.c
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main (int argc, char *argv[]) {
     char str1[] = "this is";
     char str2[] = "a test.";
     char *str3; 
     char str4[10];
     if (strcmp(str1, str2) == 0) {
       printf("Strings are equal. \n");
     }
    else {
       printf("Strings are different. \n");
     }
     
     // copy the contents of str1 into str4
     // Then print all the characters, including the null terminator
     strcpy(str4, str1);
     int len = strlen(str4);
     for (int j = 0; j < len+1; j++) {
       printf("|%c|", str4[j]);
     }
     printf("\n");
     
    // If we don't want to choose an arbirtrary size for a string (that we hope isn't too small)
    // Then we can malloc on the stack. We need to remember to 
    // malloc space for the null-terminator, too. Hence, the +1.
    str3 =(char *)malloc( sizeof(char)*(strlen(str4)+1) );
    strcpy( str3, str4 );
    printf( "%s\n", str3 );
    return 0; 
}