Bug (?) in C preprocessor
boyd at basser.UUCP
boyd at basser.UUCP
Wed May 30 04:52:32 AEST 1984
No. The reference manual states:
"Each occurrance of an identifier mentioned in the
formal parameter list of the definition is replaced
by the corresponding token string from the call."
"...the replacement string is rescanned for more
defined identifiers."
"Text inside a string or character constant is not
subject to replacement."
Hence:
#define quote(x) "x"
#define gooeys sooterkin
quote(gooeys) expands to "gooeys" and not "sooterkin".
I have written a C preprocessor that adheres to the most
recent standard. The standard has these "additions":
#elif expression
and
defined(name) in #if expressions
I wouldn't advise a change to the preproccessor to do this alternate
expansion because by definition it would NOT be the C preproccessor.
---
>From the VB can of Boyd Roberts. ...!decvax!mulga!boyd:basser
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