Mac Forum / Programming / CodeWarrior / March 2004

It isn't quite as obviously a bug if it's on stdin, as in this case.  See
<http://www.eskimo.com/~scs/C-faq/q12.26.html>.

-Eric

I'm using scanf's but not any gets(*shrugs*). And that's why i'm using
the fflush..to get rid of the newline that comes up due to hitting
enter. It doesn't effect numbers, because int, etc won't notice the
newline..but other data types will be effected by the newline, so I
have to flush before the new data type is entered. This is in a loop
BTW.

Here's a sample of my code:

               printf("Math Menu Program \n");
        printf("A. Add up numbers \n");
        printf("B. Subtract numbers \n");
        printf("C. Multiply numbers \n");
        printf("D. Divide numbers \n");
        printf("E. Exit \n");
        printf("Please enter your choice: ");
        scanf("%c", &letter);
       
        /* Switch/Case statement to read which letter the user entered. */
       
        switch (letter)
        {
            case 'A':
                   
            case 'a':
                printf("Please enter first number to add: ");
                scanf("%d", &num1);
                printf("Please enter second number to add: ");
                scanf("%d", &num2);
                total = num1 + num2;
                printf("The total is %d \n\n", total);
                fflush(stdin);
                break;

Thanks David i'll try that next time, instead of changing EVERYTHING
that is REQUIRED for my class and changing my TEACHER like some ppl
seem to think is good advice....