Can pre-ANSI C Preprocessor handle symbolic constants in strings?

[Brumley David M]

In article <1991May31.154937.24240 at csrd.uiuc.edu> bliss at sp64.csrd.uiuc.edu (Brian Bliss) writes:
>   the following work on a sun and most other non-ANSI cpp's:
>
>   #define quote(x) "x"
>
This doesn't work on the compiler in question (Laser C on an Atari
ST, admittedly not a canonical compiler) which doesn't substitute for
quoted arguments.  The C compiler on our university's Pyramid-90x
running OSx4.1 does the substitution (and hence is less compliant with
ANSI than the PC compiler), but only once.  So that with:

	#define CONSTANT 42
	#define quote(x) "x"

	printf(quote(CONSTANT));

we get 
	printf("CONSTANT"); 
not
	printf("42");

In any case this is all academic without string concatenation.


 

--
David M. Brumley
<dmb8516 at usl.edu>