[mercury-users] Named constants?

[Fergus Henderson]

On 13-May-2004, Peter Hawkins <peter at hawkins.emu.id.au> wrote:
> How does one create some sort of named constant in Mercury? (as one might do 
> with a #define in C).
> 
> Should I just do this?
> :- func my_constant = int.
> my_constant = 42.

Yes.

> Surely there is a more compact notation...

If you compile with `--infer-all', and the constant is only used in
one module, then the type declaration is optional.  In that case,
the named constant definition is just

	my_constant = 42.

which seems sufficiently concise to me.

-- 
Fergus Henderson                    |  "I have always known that the pursuit
                                    |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
--------------------------------------------------------------------------
mercury-users mailing list
post:  mercury-users at cs.mu.oz.au
administrative address: owner-mercury-users at cs.mu.oz.au
unsubscribe: Address: mercury-users-request at cs.mu.oz.au Message: unsubscribe
subscribe:   Address: mercury-users-request at cs.mu.oz.au Message: subscribe
--------------------------------------------------------------------------