RE: [boost] PP: detecting a token?

From: Aleksey Gurtovoy (agurtovoy_at_[hidden])
Date: 2003-04-11 16:42:24

Paul Mensonides wrote:
> BTW, it is easy to compare identifiers/keywords provided that you 
> have 1) a strict preprocessor, and 2) a simple "traits" macro for 
> each identifier that you might want to compare.  For example, if 
> you want to be able to compare identifiers for "Aleksey" and "Paul,"
> you need these to macros (abbreviating macro prefix to "_" for 
> brevity):

[...]

> 
> // custom user-defined macros:
> #define _COMPARE_Aleksey(x) x
> #define _COMPARE_Paul(x) x
> 
> _COMPARE(abc, Aleksey)     // 0
> _COMPARE(Paul, Aleksey)    // 0
> _COMPARE(Aleksey, abc)     // 0
> _COMPARE(Aleksey, Aleksey) // 1

That's exactly the facility I would be completely happy with! 

Can we make it work for some of the broken preprocessors? Personally, I care
only about MSVC and Metrowerks.

Aleksey