Re: [xmlvm-users] Maths

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

This problem is probably caused by missing support for a Java byte code.
Look in the generated code for the _ERROR and you will see the byte code
that is missing.

/Björn

Joseph Rukshan Fonseka skrev:
> Hi, yes I did. I fixed the pow function name as suggested by Bjorn. I
> have managed to compile it, but fails during linking. Attached is my
> maths file and android source code.
>
> The compile error I get is:
>
> w.o obj/org_xmlvm_iphone_UITouch.o obj/org_xmlvm_iphone_UIView.o
> obj/org_xmlvm_iphone_UIWindow.o obj/org_xmlvm_iphone_gl_BufferUtils.o
> obj/org_xmlvm_iphone_gl_CAEAGLLayer.o
> obj/org_xmlvm_iphone_gl_EAGLContext.o
> obj/org_xmlvm_iphone_gl_EAGLDrawable.o obj/org_xmlvm_iphone_gl_GL.o
> obj/org_xmlvm_iphone_gl_GLView.o obj/xmlvm.o
> Undefined symbols:
>   "_ERROR", referenced from:
>       -[com_home_imageviewer_ImageViewer
> onCreate___android_os_Bundle:] in com_home_imageviewer_ImageViewer.o
>       -[com_home_imageviewer_ImageViewer
> onCreate___android_os_Bundle:] in com_home_imageviewer_ImageViewer.o
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
> make: *** [build/test.app/test] Error 1
>
>
>
> ------------------------------------------------------------------------
>
>
> ------------------------------------------------------------------------
>
>
> ------------------------------------------------------------------------
>
>
>
> On 11/10/2009, at 6:09 PM, Wolfgang Korn wrote:
>
>> Did you run the ant script to rebuild the library jars after
>> implementing these Math methods? If yes - please send me a patch file
>> with your implementation so that it is a little bit easier for me to
>> add things to my workspace. Then I will have a look at what's going
>> wrong and come back to as soon as possible.
>>
>> -- Wolfgang
>>
>>
>> Joseph Rukshan Fonseka wrote:
>>> Ok I added these to java_lang_Math.m
>>> + (float) pow___float: (float) x : (float) y
>>> {
>>>     return pow(x, y);
>>> }
>>>
>>> + (double) pow___double: (double) x : (double) y
>>> {
>>>     return pow(x, y);
>>> }
>>> + (float) max___float_float :(float) x :(float) y
>>> {
>>> return x < y ? y : x;
>>> }
>>>
>>> + (double) max___double_double :(double) x :(double) y
>>> {
>>> return x < y ? y : x;
>>> }
>>>
>>> + (int) max___int_int :(int) x :(int) y
>>> {
>>> return x < y ? y : x;
>>> }
>>>
>>> + (float) min___float_float :(float) x :(float) y
>>> {
>>> return x >  y ? y : x;
>>> }
>>>
>>> + (double) min___double_double :(double) x :(double) y
>>> {
>>> return x >  y ? y : x;
>>> }
>>>
>>> + (int) min___int_int :(int) x :(int) y
>>> {
>>> return x >  y ? y : x;
>>> }
>>>
>>> and corresponding prototypes to the header file.
>>>
>>> However this android code:
>>> public class ImageViewer extends Activity {
>>>     /** Called when the activity is first created. */
>>>     @SuppressWarnings("deprecation")
>>> @Override
>>>     public void onCreate(Bundle savedInstanceState) {
>>>         super.onCreate(savedInstanceState);
>>>         
>>>         AbsoluteLayout layout = new AbsoluteLayout(this);
>>>         layout.setLayoutParams(new
>>> LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
>>>         ImageView viewer = new ImageView(this);    
>>>         viewer.setImageResource(R.drawable.cat);
>>>         layout.addView(viewer, new
>>> AbsoluteLayout.LayoutParams(AbsoluteLayout.LayoutParams.WRAP_CONTENT,
>>> AbsoluteLayout.LayoutParams.WRAP_CONTENT, 0, 100));
>>>         TextView text = new TextView(this);
>>>         layout.addView(text, new
>>> AbsoluteLayout.LayoutParams(AbsoluteLayout.LayoutParams.WRAP_CONTENT,
>>> AbsoluteLayout.LayoutParams.WRAP_CONTENT, 0, 0));
>>>         setContentView(layout);
>>>
>>>         Math.pow(1.5,2*5);
>>>         Math.min(1.2, 3.0);
>>>         Math.max(3.4, 4.5);
>>>     }
>>> }
>>>
>>> However cross compiling to iphone give me this error message:
>>> com_home_imageviewer_ImageViewer.m:131: warning: ‘java_lang_Math’
>>> may not respond to ‘+pow___double_double::’
>>> com_home_imageviewer_ImageViewer.m:131: warning: (Messages without a
>>> matching method signature
>>> com_home_imageviewer_ImageViewer.m:131: warning: will be assumed to
>>> return ‘id’ and accept
>>> com_home_imageviewer_ImageViewer.m:131: warning: ‘...’ as arguments.)
>>> com_home_imageviewer_ImageViewer.m:131: error: incompatible types in
>>> assignment
>>> com_home_imageviewer_ImageViewer.m:133: warning: implicit
>>> declaration of function ‘ERROR’
>>>
>>>
>>> I am pretty confident it is due to the Math functions I am calling
>>> at the end of my activity. Any idea what I am doing wrong?
>>>
>>>
>>> On 09/10/2009, at 2:48 AM, Joseph Rukshan Fonseka wrote:
>>>
>>>> Ok I tried to convert an android application to iphone and noticed  
>>>> quite a few of the Maths functions don't compile such as
>>>>
>>>> Math.max()
>>>> Math.min()
>>>> Math.pow()
>>>>
>>>> I am guessing they aren't supported yet? I would like to extend the  
>>>> Maths library to have these functions. Which file should I be looking  
>>>> at to add these?
>>>>
>>>> Regards,
>>>> Rukshan Fonseka.
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
>>>> is the only developer event you need to attend this year. Jumpstart
>>>> your
>>>> developing skills, take BlackBerry mobile applications to market
>>>> and stay
>>>> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
>>>> http://p.sf.net/sfu/devconference
>>>> _______________________________________________
>>>> xmlvm-users mailing list
>>>> xml...@li...
>>>> <mailto:xml...@li...>
>>>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>>
>>> ------------------------------------------------------------------------
>>>
>>> ------------------------------------------------------------------------------
>>> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
>>> is the only developer event you need to attend this year. Jumpstart your
>>> developing skills, take BlackBerry mobile applications to market and stay 
>>> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
>>> http://p.sf.net/sfu/devconference
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> xmlvm-users mailing list
>>> xml...@li...
>>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>>   
>>
>>
>> ------------------------------------------------------------------------------
>> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
>> is the only developer event you need to attend this year. Jumpstart your
>> developing skills, take BlackBerry mobile applications to market and
>> stay
>> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
>> http://p.sf.net/sfu/devconference_______________________________________________
>> xmlvm-users mailing list
>> xml...@li...
>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>
> ------------------------------------------------------------------------
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay 
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> ------------------------------------------------------------------------
>
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>   