🚀 go-pugleaf

I'm using:

#define USE_VAR(var) static void * use_##var = (&use_##var, (void *) &var)

to get around the unused warnings generated (with -Wall)

(I'm using

define ID_STRING(x)            static char rcsid[] = x; USE_VAR(rcsid);

to define RCS strings).

This doesn't seem to work in gcc 1.x, but in 2.x...

Is it ansi C?  I understand the comma operator can appear anywhere...

I get: (in gcc 1.39)
foo.c:13: initializer for static variable is not constant


So I had a minor brainstorm -- instead of this, have a recursive static function

so (using gcc 2.5.6 on sparcs)



#define USE_VAR(var) static void func ## var(const char *name) { func ## var(var); } 



#define ID_STRING(x)		static char rcsid[] = x; USE_VAR(rcsid);

ID_STRING("ID");
and command line:
                 gcc.256 -O2 -S -o idstring-O2+.S idstring.c

I get:


gcc2_compiled.:
___gnu_compiled_c:
.data
	.align 8
_rcsid:
	.ascii "ID\0"
.text
	.align 4
	.proc	020
_funcrcsid:
	!#PROLOGUE# 0
	save %sp,-112,%sp
	!#PROLOGUE# 1
	sethi %hi(_rcsid),%o0
	call _funcrcsid,0
	or %o0,%lo(_rcsid),%o0
	ret
	restore

The code generator should be able to make this go away...

--
marty
leisner@sdsp.mc.xerox.com leisner.henr801c@xerox.com 
Member of the League for Programming Freedom
"I just know I'm a better manager when I have Joe DiMaggio in center field" -- Casey Stengel