C sizeof operator

gistfile1.txt

To be pedantic, C sizeof doesn't operate on types either. The sizeof
operator applies to an expression or - this is the tricky bit - a type
cast.

thus
 sizeof i
but also
 sizeof(int)
but not
 sizeof int

People think C sizeof is a function but it's an operator; the
expression sizeof(int) parses differently from the way most people
interpret it.

We're getting off topic.