Re: Preprocessor lib problems on Solaris (Forte compiler)

From: Christopher Currie (Christopher_at_[hidden])
Date: 2002-11-14 15:13:47

In article <aqs5gp$php$1_at_[hidden]> you wrote:
> The only major difference in the CVS is that the CVS automatically uses the
> Borland configuration for Sun's preprocessor.  Can you do a small test for
> me?  What is the preprocessed result of this:
> 
> #define A(x, y) (x, y)
> #define B(args) A args
> 
> B(xyz) // ??
> 
> This is the essence of the Borland bug.  It *should* yield:
> 
> A xyz
> 
> Borland, however, yields:
> 
> Axyz
> 
> I'm just curious if this is the specific problem with Sun's preprocessor as
> well.

No, the Sun preprocessor bug is similar, but only applies when a macro
name
is used as an argument to another macro. Thus:

#define A(args) args
#define B()

A(B C) // ?

should yield:

B C

but in fact produces

BC

Sun has acknowledged the bug (Bug id 4763527). Oddly enough, the _C_
preprocessor does not have this bug.

Christopher