-- card: 17666 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 4755
-- name: 


-- part contents for background part 4
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("address of") operator.  The formal parameters of scanf() now "point to" the new_age and new_weight variables defined in the Person::set() function.  scanf() reads values from the standard input and assigns them to the variables "pointed to" by its parameters.

Incidentally, scanf() also returns a value in the conventional sense:  the number of items successfully read.  As done here, it is common - buy somewhat risky - to ignore this returned value.


-- part contents for background part 7
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