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Improved error message

release/4.3a0
Richard Roberts 2012-07-13 21:59:30 +00:00
parent bcaa1d00bf
commit ee2889d4b3
1 changed files with 4 additions and 2 deletions
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2
wrap/matlab.h
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@ -366,6 +366,8 @@ mxArray* create_object(const std::string& classname, void *pointer, bool isVirtu
if(!derivedNameMx)
mexErrMsgTxt((
"gtsam wrap: The derived class type " + string(rttiName) + " was not found in the RTTI registry. "
"Try calling 'clear all' twice consecutively - we have seen things not get unloaded properly the "
"first time. If this does not work, this may indicate an inconsistency in your wrap interface file. "
"The most likely cause for this is that a base class was marked virtual in the wrap interface "
"definition header file for gtsam or for your module, but a derived type was returned by a C++ "
"function and that derived type was not marked virtual (or was not specified in the wrap interface "