An over enthusiastic warning ?

Bjorn Gustavsson <>
Wed May 24 11:42:48 CEST 2006

Roger Price <> writes:

> It seems to me that these warnings should have been suppressed in view of 
> the leading "_".

Using variables starting with underscore only suppress warnings
for unused variables.

To suppress warnings for shadow, you can add the following line to the generated



> [1] An implementation of the Augustsson/Wadler pattern matching compiler 
> described in chapter 5 of "The implementation of functional programming 
> languages" by Simon L Peyton Jones.

For learning purposes, I suppose?

The Beam compiler already implements that same algorithm.

Björn Gustavsson, Erlang/OTP, Ericsson AB

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