Re: [Bug-apl] Hang in Residue

[Jay Foad]

Thanks. At r1034 I get:

      A←(-⌽A),0,A←1e¯200 1e¯100 1 1e100 1e200

      A∘.|A

DOMAIN ERROR

And here's one of the cases that fails:

      1e¯200|1e200

DOMAIN ERROR

This still seems wrong to me, since the ISO standard for Residue says "Implementations should avoid signalling limit-error in residue" with advice on how to avoid it. (OK, it doesn't mention DOMAIN ERROR, but I think the same principle applies.)

Jay.

On 6 January 2018 at 11:56, Juergen Sauermann <address@hidden> wrote:

Hi,

thanks, fixed in SVN 1029.

/// Jürgen

On 01/05/2018 04:37 PM, Jay Foad wrote:

Yes, that _expression_ hangs on my Linux box too. It gets stuck here:

FloatCell::bif_residue (this=0x555555ae13a8, Z=0x555555ae24f8, 

    A=0x555555ae11d8) at FloatCell.cc:643

643              while (z < 0.0)    z = z + a;

(gdb) p z

$1 = -inf

(gdb) p a

$2 = 9.9999999999999998e-201

Jay.

On 5 January 2018 at 15:24, Xiao-Yong Jin <address@hidden> wrote:

1e¯200|1e200 hangs on my mac.

> On Jan 5, 2018, at 6:57 AM, Juergen Sauermann <address@hidden> wrote:
>
> Hi Jay,
>
> hmm, interesting. I am getting this:
>
>       A←(-⌽A),0,A←1e¯200 1e¯100 1 1e100 1e200
>       A∘.|A
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
> ¯1E200 ¯1E100 ¯1 ¯1E¯100 ¯1E¯200 0 1E¯200 1E¯100 1 1E100 1E200
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>  0E0    0E0    0  0E0     0E0    0 0E0    0E0    0 0E0   0E0
>
> I suppose it is one of the A[i] ∣ A[j] which causes the hanging so it would
> be interesting to know which one. Probably one with +/- 1E¯200 or 1E¯100.
>
> Best Regards,
> /// Jürgen
>
>
> On 01/05/2018 12:16 PM, Jay Foad wrote:
>> At svn r1028 on Linux I get:
>>
>>       A←(-⌽A),0,A←1e¯200 1e¯100 1 1e100 1e200
>>       A∘.|A
>> (hangs)
>>
>> Jay.
>