Thread: Looping Program

This problem's really simple to solve - do you have any code to show us?

You need to encase your main code is a loop. Something like this:

Code:

looping = true

while (looping)
  do stuff
  ask user if they want to exit
  if YES: looping = false
end while

Which bit are you having trouble with?

hi there.

http://cboard.cprogramming.com/showt...threadid=33349

I think the above thread might help. it will scanf a yes or no answer then return the function necessary. As for looping you can try a for loop or a while loop.

> if anyone wants to see it let me know and I can post it tomorrow.

Sure, why don't you put it up here - maybe we can still offer input.

when your checking the breed and the flag use == not =

i.e. while( flag == 'Y' )

you might also want to make sure there is no confusion between 'y' and 'Y' or 'n' and 'N' you can use toupper( flag )
it will make the letter become the upper case version so wether they type y or Y it will become Y.

Hope this helps.

Sorry I should of said that you need to include a specila header file to use toupper() :

#include <ctype.h>

and you can use to uppper as soon as you have the character ie.
scanf( ... ); /* You have new got the character */
toupper( the character ); /* you can now upper case it */

you might also replace the above with something like this-

flag = toupper( getch() );

this makes flag hold the key pressed in its upper case format.

getch() is in another header file-
#include <conio.h>

Hope this helps

Please don't advise the use of getch(), its a non-standard function.

@Melon, change all of these:
temp = getchar();

for these:
while (getchar() != '\n');

Your input buffer isn't being cleared fully, the while loop will do that for you.

I really appreciate everyone's help on this problem of mine. Once again I'm quite new to programming and your help is always awesome. The thing is, my problems still exist. My program will not give a name for the dog choosen and will not loop. I swear this is the last time I'll ask about this question, and just fake the program instead. Here is my current, and possibly final code.

Code:

/* Dog naming program */
#include <stdio.h>
#include <ctype.h>

int main (void)
{
	char gender, breed, flag;				/* declaration */
	flag = 'Y';
	while( flag == 'Y' ) { 
	
	/* processing phase */
	
	printf( "Let's pick out a name for your dog.\n" );	/* prompt */
	printf( "What gender is your dog? Enter 'm'\n");
	printf( "for male and 'f' for female: " );
	scanf( "%d", &gender );					/* read gender */
	while (getchar() != '\n');				/* clear char */
	
	printf( "What breed of dog do you have?\n" );		/* prompt */
	printf( "Enter 'c' for Collie, 's' for\n" );
	printf( "St. Bernard and 'd' for Dalmation.\n" );
	scanf( "%d", &breed );					/* read breed */
	while (getchar() != '\n');				/* clear char */
	
	if ( gender == 'm' ) {
	
	if ( breed == 'c' )
		printf( "Try naming your dog Weinberg.\n" );
	if ( breed == 's' )
		printf( "Try naming your dog Gunther.\n" );
	if ( breed == 'd' )
		printf( "Try naming your dog Spots.\n" ); 
		
	}
	
	else {
	
	if ( breed == 'c' )
		printf( "Try naming your dog Rosie.\n" );
	if ( breed == 's' )
		printf( "Try naming your dog Heidi.\n" );
	if ( breed == 'd' )
		printf( "Try naming your dog Princess.\n" );
	}
	
	/* termination phase */
	
	printf( "Would you like to try again?" );		/* prompt */
	printf ( "'Y' or 'N'?\n" );
	scanf( "%c", &flag );					/* read flag */
	toupper( flag );
	while (getchar() != '\n');				/* clear char */
}
	return 0;
	}

Thanks again for all your help everyone.

I just want to thnk everyone that has helped me with my problem. The program runs great now.