[mercury-users] Why not using constructors as HO functions ?

[Fergus Henderson]

On 26-Jul-2001, Holger Krug <hkrug at rationalizer.com> wrote:
> I tried to use a constructor as a function in a place where a higher
> order argument is expected, but this seems to be impossible.

Constructors are equivalent to multi-moded functions.  Currently Mercury
doesn't let you use multi-moded functions where a higher-order argument is
expected; you need to use an explicit lambda expression to specify the mode.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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