[FreeWRL-develop] Possible bugs in X3DNode allocation/deallocation

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Hi,
I was working with the awesome X3D_get[type] and X3D_new[type] functions 
that make easy to translate values in and out the EAI channel when I've 
noticed what can be a bug.

First of all, the X3D_freeNode function
\src\libeai\EAI_C_Field.c -> line 38

works well for all the SF types, but it seems to me that does wrong the 
freeing of the MF types. In fact for almost all the MF types deallocates 
only the
node->X3D_MFInt32.p pointer (line 73-82) , even if the struct allocates 
other types.

The second problem lies in some X3D_new[type] functions that seem to 
allocate the wrong type.
For instance
X3D_newMFVec3f(int num, float(* array)[3])
\src\libeai\EAI_C_Field.c -> line 325

instead of allocating space for "n" _intX3D_SFVec3f and passing the 
address to the internal member X3D_MFVec3f.p allocates space for "n" X3DNode
retval->X3D_MFVec3f.p = malloc (sizeof(X3DNode) * num); [line 332]

I hope this could be useful.

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  Luca Cerutti
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