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POCalling functions from within function(float *VeryBigArray,long SizeofArray) from within objC method fails with EXC_BAD_ACCESS
 

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  1. POCalling functions from within function(float *VeryBigArray,long SizeofArray) from within objC method fails with EXC_BAD_ACCESS
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    <p>Ok I finally found the problem. It was inside the C function(CarbonTuner2) not the objC method. I was creating inside the function an array of the same size as the file size so if the filesize was big it created a really big array and my guess is that when I called another function from there, the local variables were put on the stack which created the EXC_BAD_ACCESS. What I did then is instead of using a variable to declare to size of the array I put the number directly. Then the code didnt even compile. it knew. The error wassomething like: Array size too big. I guess working 20+hours in a row isnt good XD But I am definitly gonna look into tools other than step by step debuggin to figure these ones out. Thanks for your help. Here is the code. If you divide gFileByteCount by 2 you dont get the error anymore:</p> <pre><code>// ConverterController.h # import &lt;Cocoa/Cocoa.h&gt; # import "Converter.h" @interface ConverterController : NSObject { UInt64 gFileByteCount ; } -(IBAction)ProcessFile:(id)sender; void CarbonTuner2(long numSampsToProcess, long fftFrameSize, long osamp); @end // ConverterController.m # include "ConverterController.h" @implementation ConverterController -(IBAction)ProcessFile:(id)sender{ UInt32 packets = gTotalPacketCount;//alloc a buffer of memory to hold the data read from disk. gFileByteCount=250000; long LENGTH=(long)gFileByteCount; CarbonTuner2(LENGTH,(long)8192/2, (long)4*2); } @end void CarbonTuner2(long numSampsToProcess, long fftFrameSize, long osamp) { long numFrames = numSampsToProcess / fftFrameSize * osamp; float g2DFFTworksp[numFrames+2][2 * fftFrameSize]; double hello=sin(2.345); } </code></pre>
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    1. USyan bellavance
    1. USyan bellavance
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    1. COmaybe its just some language incompatibility. I don't know how nicely obj c and c play together,
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      1. USGordon Gustafson
    2. COCan you post the code where you get errors, and the exact error that you get please? You can definitely use sin() and cos() anywhere--I use them all the time.
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      1. USJason Coco
    3. COPlease post the code and the error you're getting. My first hunch would be that you're using #include and not #import
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      1. USDave DeLong
 

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