MATLAB COMPILER RELEASE NOTES User's Guide download pdf (Page 164)

5 Controlling Code Generation

5-48

Main Routine Written in M-Code

If your main routine is an M-file, you must:

•Write a print handler in C.

•Register the print handler in y our main M-file.

Registering the print handler requires several steps, some performed in C and

some in M -code. To regist er a print handler from your main M-file, you call a

dummy print handler initialization function written in M-code. The MATLAB

Compiler translates that call into a call to the actual print handler

initialization function written in C or C++.

To set up for this translation, you must write two print handler initialization

functions:

•A print handler initializa tion function in C or C++ t hat registers the print

handler

•A dummy print handler ini tial ization routine in M-code that does nothing

(the body of the function is empty) except enable the MATLAB Compiler to

make the proper translation

You call the dummy print handler initialization function from your main

M-file. The MATLAB Compiler translates that call into a call to your print

handler initialization function written in C or C++.

Example Files

In this example, two M-files and one C file are built into a stand-alone

application. The main routine is

mr.m.

•

mr.m contains t he m ain M routine.

function mr(m)

initprnt

m=str2num(m);

r=mrank(m);

function initprnt

%#external

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MATLAB COMPILER RELEASE NOTES User's Guide Page 164