Submitted by tushar pramanick on Mon, 02/25/2013 - 12:20

Debugging Your Program
In the computer world, program errors are also called bugs. In many cases, your C compiler and linker do not find any errors in your program, but the result generated by running the executable file of the program is not what you expect. In order to find those "hidden" errors in your program, you may need to use a debugger.

Normally, your C compiler vendor already includes a debugger software program in the C compiler package. The debugger can execute your program one line at a time so that you can watch closely what's going on with the code in each line, or so that you can ask the debugger to stop running your program on any line. For more details about your debugger, refer to the manuals made by your C compiler vendor.

Later in this book, you'll learn that debugging is a very necessary and important step in writing software programs. (This topic is covered in Hour 24, "What You Can Do Now.")

 

Related Items

The Basics of Disk File I/O

The Basics of Disk File I/O

Now let's focus on how to open and close a disk data file and how to interpret error messages returned by I/O functions.

Files Versus Streams

Files Versus Streams

Exercises : Answer the following Question

To help solidify your understanding of this hour's lesson, you are encouraged to answer the quiz questions and finish the exercises provided in the Workshop before you move to the next lesson.

Question and Answer

    Q What are the differences between a union and a structure?

Making Structures Flexible

Making Structures Flexible

The second application of unions is to nest a union inside a structure so that the structure can hold different types of values.