C Primer Plus®, Third Edition

Creating a Friendlier User Interface

Most of us have on occasion written programs that are awkward to use. Fortunately, C gives you the tools to make input a smoother, more pleasant process. Unfortunately, learning these tools could, at first, lead to new problems. The goal in this section is to guide you through some of these problems to a friendlier user interface, one that eases data entry and smoothes over the effects of faulty input.

Working with Buffered Input

Buffered input is often a convenience to the user, but it can be bothersome to the programmer when character input is used. The problem, as you've seen in some earlier examples, is that buffered input requires you to press the Enter key to transmit your input. This act also transmits ...