/*  StringEquality.c  (c) Kari Laitinen

    http://www.naturalprogramming.com/

    2013-11-24 File created.
    2013-11-24 Last modification.
*/

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

int main()
{
   char  first_c_style_string[]   =  "xxxxxx" ;
   char  second_c_style_string[]  =  "yyyyyy" ;

   printf( "\n  %s  %s", first_c_style_string, second_c_style_string ) ;

   if ( strcmp( first_c_style_string, second_c_style_string )  ==  0 )
   {
      printf( "\n     Equal C-style strings." ) ;
   }
   else
   {
      printf( "\n     Not equal C-style strings." ) ;
   }

   if ( first_c_style_string  ==  second_c_style_string )
   {
      printf( "\n     The same C-style strings were compared." ) ;
   }
   else
   {
      printf( "\n     Different C-style strings were compared." ) ;
   }

   strcpy( second_c_style_string, first_c_style_string ) ;

   printf( "\n  %s  %s", first_c_style_string, second_c_style_string ) ;

   if ( strcmp( first_c_style_string, second_c_style_string )  ==  0 )
   {
      printf( "\n     Equal C-style strings." ) ;
   }
   else
   {
      printf( "\n     Not equal C-style strings." ) ;
   }

   if ( first_c_style_string  ==  second_c_style_string )
   {
      printf( "\n     The same C-style strings were compared." ) ;
   }
   else
   {
      printf( "\n     Different C-style strings were compared." ) ;
   }

   char* first_string_to_compare = (char*) first_c_style_string ;
   char* second_string_to_compare = (char*) first_c_style_string ;

   printf( "\n  %s  %s", first_string_to_compare, second_string_to_compare ) ;

   if ( strcmp( first_string_to_compare, second_string_to_compare )  ==  0 )
   {
      printf( "\n     Equal C-style strings." ) ;
   }
   else
   {
      printf( "\n     Not equal C-style strings." ) ;
   }

   if ( first_string_to_compare  ==  second_string_to_compare )
   {
      printf( "\n     The same C-style strings were compared." ) ;
   }
   else
   {
      printf( "\n     Different C-style strings were compared." ) ;
   }

   printf( "\n" ) ;
}