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A word about goto

This word is redundant in C and encourages poor programming style. For this reason it has been ignored in this book. For completeness, and for those who insist on using it (may their programs recover gracefully) the form of the goto statement is as follows: 

goto label;

label is an identifier which occurs somewhere else in the given function and is defined as a label by using the colon: 

label : printf ("Ugh!  You used a goto!");