Why do I receive a bus error or segmentation violation error when there are too many output variables on the left-hand side of an assignment from a structure in MATLAB 7.0 (R14)?

I enter the following code in the MATLAB command prompt:

S.a = [1 2 3];

[x, y, z] = S.a;

and I receive the following bus error:

 ------------------------------------------------------------------------

              Bus error detected at Thu Aug 12 11:28:31 2004

 ------------------------------------------------------------------------

 Configuration:

   MATLAB Version:   7.0.0.19901 (R14)

   Operating System: Darwin 7.5.0 Darwin Kernel Version 7.5.0: Thu Aug  5 19:26:16 PDT 2004; root:xnu/xnu-517.7.21.obj~3/RELEASE_PPC  Power Macintosh

   Window System:    The XFree86 Project, Inc (40300000), display :0.0

   Current Visual:   0x22 (class 4, depth 24)

   Virtual Machine:  Java 1.4.2_05 with "Apple Computer, Inc." Java HotSpot(TM) Client VM

     (mixed mode)

   Default Charset:  US-ASCII

 <snip>

 Stack Trace:

   [0] libmwm_interpreter.dylib:inMatass1 + 28 bytes

   [1] libmwm_interpreter.dylib:inMatAssDispatch + 348 bytes

   [2] libmwm_interpreter.dylib:inInterp(inDebugCheck, int, int, opcodes, inPcodeNest_tag volatile*) + 5124 bytes

   [3] libmwm_interpreter.dylib:inInterPcodeSJ(inDebugCheck, int, int, opcodes, inPcodeNest_tag*) + 224 bytes

   [4] libmwm_interpreter.dylib:in_local_call_eval_function(int*, _pcodeheader*, int*, mxArray_tag**, inDebugCheck) + 176 bytes

 <snip>

A similar segmentation violation error is also known to occur for this case.

Answer 1

[MathWorks Support Team]

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, there are no known workarounds.