Thread: Stop if less than 0

Thank you guys!

Hi, I am trying to get this to work, but it won't compile. Please understand I am just the beginner.
Thanks in advance for any help!

Code:

#include <stdio.h>

main(){

   float fNumber;
   int input;

   printf("Type an ASCII code 4 through 100 to get their\n");
   printf("correspondent character constants:  ");
   scanf ("%d",& input);
   printf("%8c\n", input);

   while ( fNumber=>4;fnumber <=100) {
   printf("Icorrect! Number has to be between 4 and 100. TRY again\n");
   scanf("%g",&fNumber);
                  }
 /* if ( fNumber=>4;fnumber <=100 ) Don't have to check ) */
  printf("Thank you for entering the number %g!\n", fNumber);
  }

main() should be int main(void)
while is in the format while (true statement), which cannot have ; in the ().

EDIT: You are also using an uninitialized variable fNumber.

Ah, didn't see that one. . . the comparitive opp is >=, not =>.

See #19

EDIT: Beaten. Bummer.

Thanks Dave_Sinkula and Kennedy!
As you can see, I am just the beginner, trying to learn on my own....
I made some changes in the code, but still won't compile. I am just very confused.
I appreciate your help!

Code:

#include <stdio.h>

main(void){

   float Number;


   printf("Type an ASCII code 4 through 100 to get their\n");
   printf("correspondent character constants:  ");
   scanf ("%g",& input);
   printf("%8c\n", input);

   while ( Number >=4,100>=Number) {

   printf("Icorrect! Number has to be between 4 and 100. TRY again\n");
   scanf("%g",&Number);
                  }
 /* if ( Number >=4,100>=Number ) Don't have to check ) */
  printf("Thank you for entering the number %g!\n", Number);
  }

O.K now it compiled, but it won't convert the ASCII codes...
Can anyone help please?
Thanks!

Code:

#include <stdio.h>

main(void){

   float Number;


   printf("Type an ASCII code 4 through 100 to get their\n");
   printf("correspondent character constants:  ");
   scanf("%g",& Number);
   printf("%8c\n", Number);

   while ( Number >=4)
   while ( 100>=Number){
   printf("Icorrect! Number has to be between 4 and 100. TRY again\n");
   scanf("%g",&Number);
                  }
 /* if ( Number >=4)(100>=Number ) Don't have to check ) */
  printf("Thank you for entering the number %g!\n", Number);
  }

Hey, hey... You cannot use two expression within the while loop's brackets. Remember the syntax for while loop:

Code:

while(expression)
{
     statements;
}

So, you can only write either 'Number >= 4' or 'Number >= 100' in the brackets. Ow yeah, you the variable's name should come out first before the value--> 'Number >=100', not '100>=Number'....

If I can use ony one expression, How can I then convert the decimal ASCII codes 4 through 100 to their correspondent character constant?

Thanks for your help!

Hello,

You should use integer data type for number. Otherwise, it wouldn't be able to be converted to character using %c. So, use int Number and replace all %g with %d for integer. OK?

Hmm, actually what do u expect by writing :

Code:

printf("Icorrect! Number has to be between 4 and 100. TRY again\n");
scanf("%g",&Number);

Let's see... if u want to ask the user again after he has entered wrong number, you can use a do-while loop which covers the whole thing from entering number to the end. And then, put a condition/expression that will keep on asking the user if the entered number is not between 4 and 100, such as:

Code:

do
{
       statements;
} while( Number < 4 || Number > 100);

Note that: || is a an OR operator.

TRY AGAIN! Do not give up!