While it does have some educational value to show that this is possible, this method has two issues:
Both a = a + b and a = a - b can cause an overflow.
a = a + b
a = a - b
I can't imagine many situations where saving a few bytes really makes up for the loss in readability.
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While it does have some educational value to show that this is possible, this method has two issues:
Both
a = a + banda = a - bcan cause an overflow.I can't imagine many situations where saving a few bytes really makes up for the loss in readability.