Why does my C++ program crash when I try displaying an mwArray as a string using the C++ Utility Library of MATLAB Compiler 4.0 (R14)?

I am attempting to display an mwArray in my C++ code as a string. For example, I might use:

 mclInitializeApplication(NULL,0);

 mwArray x(3); 

 cout << "X = " << x << endl;

 mclTerminateApplication();

However, this code causes my application to crash.

Answer 1

[MathWorks Support Team]

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

This problem has been fixed in MATLAB Compiler 4.1 (R14SP1). If you are using a previous version, read the following:

We have verified that there is a bug in the C++ Utility Library of MATLAB Compiler 4.0 (R14) in the way that the toString method of an mwArray is handled. To work around this issue, generate a shared library from an M-function that will allow you to display the mwArray as a string. For example, you might use the following in the C++ program:

 mwArray x(3); 

 my_disp(x);

where my_disp is a C++ shared library generated from the following M-function:

function my_disp(x) 

disp(x);