[Scilab-users] Problem using jarray (Scilab 5.5.1)

[Calixte Denizet]

On 23/01/2015 07:39, Joo Cat wrote:
> I was attempting to create a jagged array in Scilab to be sent to a 
> Java instance. At first, I created a Double class array and had no 
> problems:
> a = jarray("java.lang.Double",3,1)
> a(1) = [1 2 3]
> a(2) = [4 5]
> a(3) = 6
>
> Next, I attempted to create a primitive double array instead:
> b = jarray("double",3,1)
> b(1) = [1 2 3]
> b(2) = [4 5]
> b(3) = 6
> I had no problem with the first few lines. The problem occured at b(3) 
> = 6 when I attempted to assign a single element value. I got this error:
> !--error 999
> %s_i__EObj: An error occurred: Exception when calling Java method : 
> Array [[D at dbe4e5 cannot contain object which is an instance of class 
> java.lang.Double
>  at 
> org.scilab.modules.external_objects_java.ScilabJavaArray.set(Unknown 
> Source)
>  at 
> org.scilab.modules.external_objects_java.ScilabJavaObject.insert(Unknown 
> Source)
> Array [[D at dbe4e5 cannot contain object which is an instance of class 
> java.lang.Double
>  at 
> org.scilab.modules.external_objects_java.ScilabJavaArray.set(Unknown 
> Source)
>  at 
> org.scilab.modules.external_objects_java.ScilabJavaObject.insert(Unknown 
> Source)
>
> It looks like it considers scalar values as Double type and not the 
> primitive double. Is there a way to overcome this? Thanks!
>

Hi,

It is a bug so please report it at bugzilla.scilab.org.

A temporary workaround:
c=jarray("double",1);c(1)=6;
b = jarray("double",3,1)
b(3)=c

Best regards

Calixte

>
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-- 
Calixte Denizet
Software Development Engineer
-----------------------------------------------------------
Scilab Enterprises
143bis rue Yves Le Coz - 78000 Versailles, France
http://www.scilab-enterprises.com

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