Writing Bug-Free C Code: General Tips

Writing Bug-Free C Code: General Tips

Once the create and destroy methods are working correctly, it is time to start implementing the other method functions. The best strategy is to implement a method function, compile it and then test it by writing test code.

In the case of the Dos module, you may decide to implement DosRead() first. After doing so, you could then create a test file with a known data set and attempt to have the test code read this data set. This helps validate the DosRead() code. Likewise for the DosWrite() function. Write out some information to a file and verify that it was indeed written.

The order in which you code the method functions is totally up to you. After you gain experience using this technique, you will end up picking an order that allows for test code to be written easily.

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