MATLAB Compiler

MATLAB Compiler Verification

Verifying from MATLAB

Once you have verified that you can generate MEX-files on your system, you are ready to verify that the MATLAB Compiler is correctly installed. Type the following at the MATLAB prompt.

mcc -x invhilb

After a short delay, this command should complete and display the MATLAB prompt. Next, at the MATLAB prompt, type

which invhilb

The which command should indicate that invhilb is now a MEX-file; it should have created the file invhilb.dll. Finally, at the MATLAB prompt, type

invhilb(10)

Note that this tests only the Compiler's ability to make MEX-files. If you want to create stand-alone applications or DLLs, refer to Chapter 4, "Stand-Alone Applications," for additional details.

Verifying from DOS Command Prompt

To verify that the Compiler can generate C MEX-files from the DOS command prompt, you follow a similar procedure as that used in the previous section.

Note    Before you test to see if the Compiler can generate MEX-files from the DOS command prompt, you may want to delete the MEX-file you created in the previous section, invhilb.dll. That way, you can be sure your newly generated MEX-file is the result of using the Compiler from the DOS prompt. To delete this file, you must clear the MEX-file or quit MATLAB; otherwise the deletion will fail.

Copy invhilb.m from the <matlab>\toolbox\matlab\elmat directory to a local directory and then type the following at the DOS prompt.

mcc -x invhilb

Next, verify that invhilb is now a MEX-file by listing the invhilb files.

dir invhilb*

You will see a list containing

invhilb.c
invhilb.dll
invhilb.h
invhilb.m
invhilb_mex.c

These are the files that the Compiler generates from the M-file, in addition to the original M-file, invhilb.m. The Compiler-generated MEX-file appears in the list as the filename followed by the extension, dll. In this example, the Compiler creates the file invhilb.dll. For more information on which files the Compiler creates for a compilation, see Chapter 5, Controlling Code Generation.

To test the newly created MEX-file, you would start MATLAB and, at the MATLAB prompt, you could type

invhilb(10)

mex Verification

Troubleshooting