🚀 go-pugleaf

In article <4524@crash.cts.com> wade@pnet01.cts.com (Wade Bickel) writes:
>papa@pollux.usc.edu (Marco Papa) writes:
>>In article <4495@crash.cts.com> wade@pnet01.cts.com (Wade Bickel)
>>writes: 
>>Can you have "procedure pointers"
>>in M2 (i.e., variables that hold addresses of subroutines, and that get called
>>just by referencing the variable, and that of course can be assigned to)?

>        In a word, YES.  Modula-2 is not PASCAL.  It allows pointer math and
>procedure pointers, and all the other goodies of this nature not included in
>PASCAL.

I've been told by a third party the this is not entirely true. Can you have 
procedure pointers as fields of data structure as in:

struct xpr {
	long (*xpr_open)();
	long (*xpr_close)();
	....
}

...
struct xpr *io;

io->xpr_open = MyOpen;
io->xpr_close = MyClose;

Can you do that in M2?  I'd really like to know? Also does M2 provide
setjmp/longjmp in one of the libraries?

-- Marco Papa 'Doc'
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