R: very basic porting

[Jim Wilson]

Gabriele Caracausi wrote:
> The version in 3.3. The line is
> 
>   if (class == MODE_FLOAT)
>     prepare_float_lib_cmp (px, py, pcomparison, pmode, punsignedp);
> 
>   else
>     abort ();

This isn't enough information.  We need to know why none of the previous 
conditions matched.  For instance, what is the value of mode?  What are 
the values of the cmp_optab->handlers[] array?
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com