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Additions to goto discussion

Hi ,

  Just adding to the discussion of goto usage ,
the below helps avoid using goto .


do { ... } while (0) ;


That is, it allows you to break out of the block
early if some condition is met, without defining
a label and using goto.  

Consider:

do {
	if (foo)
		break;

	some();
	thing();
	which();
	takes();
	forever();
} while (0);

Cheers !

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