Coder's Guild Mailing List

flushing buffers

Posted by Morgan Terry on 1999-03-30

Hey
    I have a function where I am using printf and fgets to prompt for and
get input.  If I use flushall() before my printf calls, it works, but
only in Borland C++ v4.52.  When I try it w/ djgpp, it complains with
"undeclared reference to 'flushall'"  
I am compiling w/ the following command line: gcc -o budget.exe budget.c

    If I don't use the flushall(), though, it doesn't work right.  It acts
like it's skipping some of my fgets() calls, maybe an extra newline in
one of the streams?

    I would like to know what buffers I need to flush(I don't want to use
flushall() if it isn't portable), and also, if anyone could point me to
a better way of prompting for and getting the input, I would be
interested in that as well.

Here is the code for my function:

void get_input(char *date, char *desc, char *price)
{
    /* I would like to get rid of these, if I can */
    flushall();
    printf("Enter date of purchase in mm/dd/yy format: ");
    fgets(date, 9, stdin);

    flushall();
    printf("Enter item description(up to 50 characters): ");
    fgets(desc, 51, stdin);

    flushall();
    printf("Enter amount: ");
    fgets(price, 7, stdin);
}


Thanks.   
-- 

Morgan                                 morgan@xxxxxxxxxxx.xxx

"Unix is user friendly - it's just picky about it's friends."

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