MATLAB Programming Fundamentals - MathWorks

pcode *.m

See the pcode function reference page for a description of all syntaxes for generating P-

code files.

Invoking the P-Code File

You invoke the resulting P-code file in the same way you invoke the MATLAB .m source

file from which it was derived. For example, to invoke file myfun.p, type

[out, out2, ...] = myfun(in1, in2, ...);

To invoke script myscript.p, type

myscript;

When you call a P-code file, MATLAB gives it execution precedence over its

corresponding .m source file. This is true even if you happen to change the source code at

some point after generating the P-code file. Remember to remove the .m source file

before distributing your code.

Running Older P-Code Files on Later Versions of MATLAB

P-code files are designed to be independent of the release under which they were created

and the release in which they are used (backward and forward compatibility). New and

deprecated MATLAB features can be a problem, but it is the same problem that would

exist if you used the original MATLAB input file. To fix errors of this kind in a P-code file,

fix the corresponding MATLAB input file and create a new P-code file.

P-code files built using MATLAB Version 7.4 and earlier have a different format than those

built with more recent versions of MATLAB. These older P-code files do not run in

MATLAB 8.6 (R2015b) or later. Rebuild any P-code files that were built with MATLAB 7.4

or earlier using a more recent version of MATLAB, and then redistribute them as

necessary.

Building a Standalone Executable

Another way to protect your source code is to build it into a standalone executable and

distribute the executable, along with any other necessary files, to external customers. You

must have the MATLAB Compiler and a supported C or C++ compiler installed to prepare

files for deployment. The end user, however, does not need MATLAB.

25 Programming Utilities