[9fans] why does this compile?

[erik quanstrom]

this is rejected by most other compilers because
rlogn is not initialized to a constant.  the value
returned is bizarre.

- erik

> #include <u.h>
> #include <libc.h>
> 
> static char  rlog[24];
> static char *rloge = rlog + sizeof rlog;
> static char *rlogl = rlog + sizeof rlog - 1;
> static char *rlogn = rloge - 1;
> 
> void
> main(int, char **)
> {
>       print("%p %p %p %p\n", rlog, rlogl, rlogn, rloge);
>       exits(nil);
> }