Thread: Number Convert function

Write a function int convert () that reads a decimal number one character(digit) at a time, terminated by a blank, and returns the value of that number.
I am trying to write program for above

Code:

#include <stdio.h>
int main() 
{  
int number=0;    
int digit=0;   
while(digit != ' ')   
{     
printf("Enter the digit\n");     
scanf("%d,&digit");     
number = number*10 + digit;   
}   
printf("The entered number is=%d ",number);    
return 0;
}

The code does not exit the while condition.

I am really sorry how that mistake happened. I will try with the changes.

Code:

#include <stdio.h>
int main()
{
    int number=0;
    char digit=0;
    
    while(1)
    {
     printf("Enter the digit\n");
     scanf("%c",&digit);
     getchar();
     printf("digit = %d\n", digit-'0');
     if(digit == ' ')
     {
         printf("Space entered\n");
         break;
     }
     else
     {
       number = number*10 + (digit-'0');
       printf("The entered number is = %d\n",number);
     }
     
    }
    printf("The final number is = %d ",number);
    return 0;
}

Made a working version but little complex.
Enter the digit
3
digit = 3
The entered number is = 3
Enter the digit
5
digit = 5
The entered number is = 35
Enter the digit
8
digit = 8
The entered number is = 358
Enter the digit

digit = -16
Space entered
The final number is = 358


...Program finished with exit code 0
Press ENTER to exit console.

Code:

#include <stdio.h>
int main()
{
    int number=0;
    char digit=0;
    
    while(1)
    {
     printf("Enter the digit\n");
     scanf("%c",&digit);
     getchar();
     if(digit == ' ')
     {
         printf("Space entered\n");
         break;
     }
     else
     {
       number = number*10 + (digit-'0');
       printf("digit = %d\n", digit-'0');
       printf("The entered number is = %d\n",number);
     }
     
    }
    printf("The final number is = %d ",number);
    return 0;
}

I hope this is what you mean?
Enter the digit
1
digit = 1
The entered number is = 1
Enter the digit
2
digit = 2
The entered number is = 12
Enter the digit

Space entered
The final number is = 12


...Program finished with exit code 0
Press ENTER to exit console.

Instead of stopping the loop with the break statement, why not replace "while (1)" with "while (digit != ' ')"?

Originally Posted by Clearner123

Write a function int convert () that reads a decimal number one character(digit) at a time, terminated by a blank, and returns the value of that number.

I'm not seeing a function called convert that returns an int.