Help passing in a variable....

[bgreen]

I want to be able to pass in the variable diff into the fprintf statement where the number 87 is. How do I do this?

diff = dollar - cent;

POS(.25);
fprintf(fd, "%.87s --\r\n", cheque.sp_amount);

 

[xwb]

fprintf (fd, "%.2f -- \n", diff);

Not sure what the other bits of your pseudo code are

 

[bgreen]

I want to pass in diff where the 87 is. I need to keep the %s in for the cheque spelling amount.

ex.

fprintf(fd, "%.%ds --\r\n", diff, cheque.sp_amount);

%d = 87

 

[xwb]

Almost right

fprintf(fd, "%.2f %s  --\r\n", diff, cheque.sp_amount);

Assuming diff is a float. Alternatively

fprintf(fd, "%d %s  --\r\n", diff, cheque.sp_amount);

if diff is an integer