Re: [xmlvm-users] Maths

[Wolfgang K. <wol...@xm...>]

That's right. And the same is true for pow___float.

-- Wolfgang

Björn Caroll wrote:
> Your pow method is misspelled. It needs another double.
>
> /Björn
>
> Joseph Rukshan Fonseka skrev:
>   
>> 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.
>>>
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