Re: 'C' Operators precedence

Tim Waugh (
Wed, 20 May 1998 20:51:11 +0100 (BST)

On Wed, 20 May 1998, Richard B. Johnson wrote:

> However, the () for passed parameters to a macro, if it exists, requires
> that the contents of () be evaluated before the macro is expanded,
> because () has the highest presedence of any 'C' operator.

So, in "MACRO(a+b)", please explain how the pre-processor can evaluate
"a+b" before expanding the macro, when the code to evaluate "a+b" hasn't
been generated yet, let alone executed.


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