GC: bad ref
BlitzMax Forums/BlitzMax Programming/GC: bad ref
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| Hi folks, I'm stuck with this. I try to wrap the newton game dynamics a little bit but now the gc seems to crash. My wrapper has only a few types to call the newton functions and a pointer to the acutal newton object. I tested newton with the bare function pointers and that works. Please have a look: https://dl.dropboxusercontent.com/u/63630369/Download-Server/errors/newton%20physics%20bad%20ref.zip In the download there is the newton dll and my newton.mod. The test files "newton and ..." work - unless "newton and irrlicht v2.bmx" in whicht I tried to replace the NewtonWorld-Function pointers with my wrapper object. Without the GC it works but with it I get a "bad ref" on a random point in program flow although he shouldn't free anything! I forgot to say: I'm trying to use it with irrrlicht so you must have the irrlicht mod from gman to run the tests. Any help is appreciated EDIT OH MAN! I just found the mistake: I put the global functions -NewtonSetEulerAngle(eulerAngles:Byte Ptr,matrix:Byte Ptr) -NewtonGetEulerAngle(matrix:Byte Ptr,eulerAngles:Byte Ptr) in my newton wrapper type NewtonWorld but missed that the parameters are in reverse order in NewtonSetEulerAngle... Looks like that pointer sh** has crashed the GC. Thats a good example why one wraps stuff, isn't it: now there is an an assert to check the dimensions of the arrays in the wrapper function so that mistakes like these will be detected. |
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