You _CAN_ "stringize" tokens in (some) K&R pre-processors

[Shaun Case]

In article <323 at secola.Columbia.NCR.COM> jmartin at secola.Columbia.NCR.COM (John V. Martinez) writes:
>
>	I seem to recall a thread of discussion a couple of weeks ago
>about how to "stringize" a token using the K&R C preprocessor (ANSI C
>provides the # operator to do this.) Anyway, as I recall, the concensus
>was that it couldn't be done. (At least, no one submitted a method, as 
>far as I know...)
>
>	Well, now I had to try (the Mt. Everest principle, you know,)
>so I locked myself in my laboratory with a six-pack of Mountain Dew and
>a cold pizza, until I discovered a magic spell that (sort of) did the
>trick:
>
>#define quote "
>#define stringize(A)  quote A"
>
>this is _almost_ right; stringize(foobar) --(magic)--> " foobar"
>

Hey, I like that!

It gave me an idea, too... I tried the following, and it worked under 
some random version of Ultrix:
--- cut here---

#include <stdio.h>

#define quote "
#define stringize(a) (quote a"+1)

main()
{
	printf("[%s]\n",stringize(foo));
}

--- cut here ---

Is there some reason why this is a bad idea? 

// Shaun //