How do I use a protofile with 'loadlibrary'?

How do I use a protofile with 'loadlibrary'?

Answer 1

[MathWorks Support Team]

Protofiles provide two benefits when using 'loadlibrary':

• Protofiles allow you to provide prototypes for a library for which you do not have a header file
• Providing a protofile to 'loadlibrary' instead of a header file can dramatically speed up execution.

The following code gives an example of how to use a protofile:

if ~libisloaded(libname)
    % If the protofile already exists
    if exist('myProtofile', 'file') == 2
        % Load the library using the protofile, this is much faster
        loadlibrary(libname, @myProtofile);
    else
        % Load the library using the header file, generating the protofile
        % Will create a file name 'myProtofile.m' in the current
        % directory.
        loadlibrary(libname, headerFile, 'mfilename', 'myProtofile.m');
    end
end