[boost] preprocessor question

From: Arkadiy Vertleyb (vertleyb_at_[hidden])
Date: 2004-08-26 08:11:13

Hi all,

I am trying to find a way to implement something like a preprocessing-time
map.  As far as I understand, the task is trivial if "keys" contain only one
token:

#define FIND(x) BOOST_PP_CAT(FIND_, x)

#define FIND_key1 val1
#define FIND_key2 val2
#define FIND_key3 val3

And then:

FIND(key1) // evaluates to val1
FIND(key2) // evaluates to val2
FIND(key3) // evaluates to val3

However, this approach obviously brakes when keys contain more than one
token, like "key 1" (or, to be closer to the real problem, "unsigned int").

So I am wonderring if there is any facility in the preprocessor (or in the
Boost.Preprocessor) that would allow me to do this.

Thanks in advance,

Arkadiy