MATLAB BUILDER JA 2 Guia do Utilizador descarregar pdf (Página 56)

3 Programming

y = sum([varargin{:}]);

This function returns the sum of the inputs. The inputs are provided as a

varargin argument, which means that the caller can specify any num ber of

inputs to the function. The result is returned as a scalar

double.

Code Fragment: Passing Variable Numbers of Inputs

Jav a Builder generates a Java interface to this function as follows:

/* mlx interface - List version*/

public void mysum(List lhs, List rhs)

throws MWException

{

(implementation omitted)

}

/* mlx interface - Array version*/

public void mysum(Object[] lhs, Object[] rhs)

throws MWException

{

(implementation omitted)

}

/* standard interface - no inputs */

public Object[] mysum(int nargout) throws MWException

{

(implementation omitted)

}

/* standard interface - variable inputs */

public Object[] mysum(int nargout, Object varargin)

throws MWException

{

(implementation omitted)

}

In all cases, the varargin argument is passed as type Object.Thislets

you provide any number of inputs in the form of an array of Object, that

Object[], and the contents of this array are passed to the compiled

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MATLAB BUILDER JA 2 Guia do Utilizador Página 56