MATLAB: Is it possible to call an external MEX file from a stand-alone application without including the MEX file during the compilation in MATLAB 7.6 (R2008a)

compilerMATLAB Compilerstand-alone

I have a program that uses a MEX function and I would like to know if it is possible to compile this program without the MEX file and to specify the MEX file for the standalone via the PATH environment variable of the deployment computer.

Best Answer

When a program that depends on MEX file is compiled as a stand-alone, an AUTH file is generated for the MEX file. If the user does not include the MEX file during compilation, this AUTH file will not be generated.

Thus, even if the stand-alone application can locate the MEX file at runtime, it does not have the appropriate AUTH file to execute it. So it is not possible to call an external MEX function from a compiled stand-alone application.

Related Solutions

MATLAB: Is the LCC compiler that is shipped with the MATLAB Compiler, capable of compiling C++ files

The LCC utility, included with the MATLAB Compiler for Windows, is an ANSI compliant C compiler.

It does not contain functionality to compile code written in the C++ syntax.

For a full list of supported compilers, please see the following link:

http://www.mathworks.com/support/compilers/current_release/

The workaround would be to install Windows SDK 7.1 from the following link:

http://www.microsoft.com/en-us/download/details.aspx?id=8279

MATLAB: Mex

Hi,

I think the issue is raised in your switch statement when you open a file. You have a return in there, which leads to terminating the mex file without assigning the output variables. Change the return to a break and it should work.

In addition these line should generate a SegV:

plhs[1] = mxCreateDoubleMatrix(1,1,mxREAL);
      validity_out = mxGetPr(plhs[1]);
      validity_out[1] = validity;

Since validity_out[1] will access the second field in an array with one field only. This should be

validity_out[0] = validity;

The same applies on timestamp.

You dont need to apply mxFree on the xx_out variables. Since the weren't allocated woth mxMalloc and in addition they get deleted automatically when the mex function is finshed running.

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Related Solutions

MATLAB: Is the LCC compiler that is shipped with the MATLAB Compiler, capable of compiling C++ files

MATLAB: Mex

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