[Ecls-list] In LET/LET* bindings, the type of the form NIL is SYMBOL, not FIXNUM.
Juan Jose Garcia-Ripoll
juanjose.garciaripoll at googlemail.com
Tue Jun 15 21:03:06 UTC 2010
On Sun, Jun 13, 2010 at 2:01 AM, Matthew Mondor <mm_lists at pulsar-zone.net>wrote:
> I am seeing this warning with HEAD ECL when compiling some code for
> which I don't see how a value is unexpectedly NIL. I'm wondering if
> perhaps it could be a bug in the new compiler?
This is simple to understand: you declared a variable A to have type FIXNUM
but did not provide any intial value or, more precisely, according to ANSI,
the initial value is NIL, as in
(let (a) (declare (fixnum a)) (setf a 0) ...)
That is valid but not really correct code and I am happy that ECL is
figuring out that problem :-)
Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
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