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Re: CPP preprocessor: #define-splitting?
On Wed, 25 Aug 2004, Eljay Love-Jensen wrote:
> Hi Florian,
>
> The # is a preprocessor directive.
>
> The X is not a preprocessor directive.
>
> The rules for parsing preprocessor directives is different form the rules
> for parsing non-preprocessor directives. (The state machine is in a
> different state.)
>
> HTH,
> --Eljay
>
>
Hi,
thanks for the reply. But there seems to happen something strange BEFORE
the preprocessing itself (in comment remove stage?).
Why am I allowed to do a...
# /*
*/ define
and a
#
define
not? I thought the stage where it strips out comments comes before the
"main" preprocessor where it scans for #-directives. so why is the #
define allowed to be split on multiple lines WITHOUT a backslash-newline?
afaik, any comment gets replaced by a single " " and every newline inside
the comment gets added AFTER the comment.
so the
# /*
*/ define
should become a
#
define
after the comment removing stage - but this does not work see above.
(just confused wheter it does something special with comments "inside" a
#-directive)
-Florian