Need help looping my program?

[DocHaydn]

Hello,
I'm a learner; running Win'98SE, compiler:minGW dev. studio.

The following is a simple "guess the number" game.

It compiles, and runs without erors. However, I
don't know how to loop it back to play again, if
the user enters yes. How do I do this?

I've tried removing the do-while, and replacing
it with a: while(1){, and a flag = 0;, flag = 1;,
but no joy.

At present, I'm learning how to use the "function's
return value." Since this is my first go at it, I
don't know if I'm doing it correctly; as the program
does not loop, but exits with "press any key to continue."

All help would be greatly appreciated. Here's what I've
done so far.

Thank you.

#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <time.h>

int game(void)
{
   int usenum, rannum, count;
   srand(time (NULL));
   rannum = rand()%10;
   count = 0;

   do
   {
      printf("Guess the number.\n");
      scanf("%d", &usenum);
      getchar();
	 count++;

      if(usenum == rannum)
      {
		 printf("Congratulations!It took you only %d guess/guesses.\n", count);
         break;
      }
		 
      if(usenum < rannum)
      {
         printf("Too low... try again.\n");
      }
      else
      {
         printf("Too high... try again.\n");
      }
    } while(usenum != rannum);

      printf("Would you like to play again? (y/n):");
	  fflush(stdout);
    
	  return tolower(getchar()) == 'Y';
 
}
int main(void)
{
   while(game());

   return 0;
}

 

[Salem]

> return tolower(getchar()) == 'Y';
You make the character lower case, then compare it with the upper case.

This can never be true.

--

 

[VDG]

Try this, change the code to as follows:

...
      return tolower(getchar());
 
}
int main(void)
{
   while(game() == 'y');

   return 0;
}