[Aldor-l] Buggy interpreter

[W Naylor]

Hi Ralph,

I think it has been known for some time the interpreter is buggy :-(
one work around is to do the following:

#include "aldor"
#include "algebra"
#include "aldorinterp"
import from Integer;
import from Vector Integer;
import from DenseMatrix Integer;
a:=[[1,0],[0,0]];
b:=[[0,1],[0,0]];
import from LinearAlgebra(Integer,DenseMatrix Integer);
(m1,m2,v):=solve(a,b);
m1;
m2;
stdout<<v;

at least that works for me :-)

Bill

On Tue, 9 Jan 2007, Ralf Hemmecke wrote:

> The following file gives a segfault in the interpreter.
> 
> Ralf
> 
> ---BEGIN aaa.as
> #include "aldor"
> #include "algebra"
> #include "aldorinterp"
> import from Integer;
> import from Vector Integer;
> import from DenseMatrix Integer;
> a:=[[1,0],[0,0]];
> b:=[[0,1],[0,0]];
> import from LinearAlgebra(Integer,DenseMatrix Integer);
> (m1,m2,v):=solve(a,b);
> m1;
> m2;
> v;
> #quit
> ---END aaa.as
> 
> 
> aldor -gloop < aaa.as
> woodpecker:~/scratch>aldor -gloop < aaa.as
>       AA  L      DDDD      OOO    RRRR
>      A A  L      D   D    O   O   R   R
>     A  A  L      D    D  O     O  R   R
>    AAAAA  L      D    D  O     O  RRRR
>   A    A  L      D   D    O   O   R  R
> A     A  LLLLL  DDDD      OOO    R   R
> 
> (c) Numerical Algorithms Group Ltd 1995-2001
> Release: Aldor(C) version 1.0.3 for LINUX(glibc2.3) (debug version)
> Type "#int help" for more details.
>                                             Comp: 200 msec, Interp: 40 msec
>                                             Comp: 580 msec, Interp: 0 msec
>                                             Comp: 100 msec, Interp: 0 msec
>                                             Comp: 90 msec, Interp: 0 msec
>                                             Comp: 20 msec, Interp: 0 msec
>                                             Comp: 20 msec, Interp: 0 msec
> matrix [[1,0],[0,0]] @ DenseMatrix(AldorInteger)
>                                             Comp: 0 msec, Interp: 790 msec
> matrix [[0,0],[1,0]] @ DenseMatrix(AldorInteger)
>                                             Comp: 10 msec, Interp: 60 msec
>                                             Comp: 10 msec, Interp: 0 msec
>    () @ DenseMatrix(AldorInteger), DenseMatrix(AldorInteger), 
> Vector(AldorInteger)
>                                             Comp: 10 msec, Interp: 120 msec
> matrix [[0],[1]] @ DenseMatrix(AldorInteger)
>                                             Comp: 10 msec, Interp: 60 msec
> matrix [[0,0],[0,0]] @ DenseMatrix(AldorInteger)
>                                             Comp: 0 msec, Interp: 60 msec
> Program fault (segmentation violation).Program fault (segmentation 
> violation).
> 
> #1 (Error) Argument 1 of `<<$Vector(AldorInteger)' did not match any 
> possible parameter type.
>      The rejected type is TextWriter.
>      Expected type BinaryWriter.
> 
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> 
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