Initialise all variables before use

This tip submitted by Mounish on 2005-06-22 03:22:28. It has been viewed 42267 times.
Rating of 6.1 with 197 votes



Always remember to initialize variables with default values. This is not only a good programming practice but helps prevent logical errors. For instance, it is very helpful to set all pointers to NULL when you declare them; that way, if you accidentally use an uninitialized pointer, you will get a segmentation fault rather than weird memory errors that appear random and are difficult to trace to the root cause.



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