Sidebar 2 - C Coding Suggestions

• For non-array "output" or "input/output" parameters, use local variables instead of dereferenced parameters in function calculations.

• Use array notation instead of pointers and dereferencing when you're working with arrays.

• When working with pointers in assignment statements, double-check that you're using the right level of indirection.

• Unless you're positive a pointer has been initialized, check it for NULL before using it.

• Use a new_string function to return new strings from functions.

• Always check for a NULL return value after calling malloc.

• Use the allocate macro to prevent memory "leakage."

• Always initialize pointers in their definitions.

• Use typedef and PTR, contents_of, and address_of macros to improve program readability.

• Avoid popular, but tricky, C idioms for business application programming.

• Don't use ++ or - in assignments.