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5
Controlling Code Generation
informs the MATLAB Compiler that the specified function(s) will be called
through an feval call or through a MATLAB function that accepts a function
to feval as an argument (e.g., fmin or the ode solvers). Without this pragma,
the –h option will not be able to locate and compile all M-files used in your
application.
If you are using the %#function pragma to define functions that are not
available in M-code, you must write a dummy M-function that identifies the
number of input and output parameters to the M-file function with the same
name used on the %#function line. For example:
%#function myfunctionwritteninc
This implies that myfunctionwritteninc is an M-function that will be called
using feval. The Compiler will look up this function to determine the correct
number of input and output variables. Therefore, you need to provide a dummy
M-function that contains a function line, such as:
function y = myfunctionwritteninc( a, b, c );
and includes the %#external pragma. This statement indicates that the
function takes three inputs (a, b, c) and returns a single output variable (y). No
other lines need to be present in the M-function.
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