register struct or union (Re: Registers on the VAX 11/780?)

[Sam Kendall]

> Since code written on one machine is
> very often taken to others, and the word "register" isn't very hard to
> type, you should declare almost everything a register.  Even data types
> you don may not think fit in registers, like strucutures, enums,
> doubles, and unions.
> 
> 		Ken Arnol

Conceptually nice, but register structs and unions will fail with pcc-based
compilers due to a compiler bug.  The compiler treats `s.member' as
`(&s)->member'; i.e., in the compiler, `->' rather than `.' is the primitive.
Martin Minow ran into this problem porting his cpp to UNIX.

	Sam Kendall
	Delft Consulting Corp.
	{allegra, cmcl2, ihnp4}!delftcc!sam