Code reuse


Why write code that we already wrote for previous programs? Well here is a small tip that might save you
some time: Make a generic file with reusable functions.
Many languages make this easy to do. Object oriented languages like Java or C++ for example allow you to
make a class with utility functions, and then import them in your main program. This way you can use the
generic class in all your programs. Even in C you can do this by including the generic C file when compiling
with a command like:
gcc -o myprogram myprogram.c generic.c
Your generic utility functions would be in generic.c and gcc would simply add the file to myprogram.

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