[Scilab-users] varargout doubt

[Rafael Guerra]

Please check the two examples here below:

///// START OF CODE
clear;
x=[1 2 3;4 5 6];
y=[4 5 6;7 8 9];
z=10;
M=list(x,y,z);

function out_list=func1(M) //ex.1
    n = length(M);   // decide the number of variables to output based on function input
    out_list = list(1:n);
    for i=1:n
        out_list(i)=rand(M(i));
    end
endfunction

function out_list=func2(x,n)  //ex.2
    out_list = list(1:n);
    for i=1:n
        out_list(i)=x.^i;
    end
endfunction

Q = func1(M);   // Q is a list with same size as input M
n = 5;
P = func2(x,n); // P is a list of matrices with P(i) = X^i, i=1..n
///// END OF CODE

Rgds,
Rafael

-----Original Message-----
From: users [mailto:users-bounces at lists.scilab.org] On Behalf Of shamikam
Sent: Tuesday, November 08, 2016 3:28 PM
To: users at lists.scilab.org
Subject: Re: [Scilab-users] varargout doubt

Thanks for your reply but that didn't work. I would like to illustrate with a
simple example-

function varargout_list=exampl() 
    [lhs,rhs]=argn(0);
    varargout_list = list(1:lhs);  
    for i=1:lhs
        varargout_list(i)=list(ex())
    end
    
endfunction

function [x,y,z]=ex()
    x=[1 2 3;4 5 6];
    y=[4 5 6;7 8 9];
    z=10;
endfunction

exampl() calls ex(). If I call exampl() with more than one o/p argument,
there is an error

-->[c,d,e]=exampl()
                 !--error 59 
Wrong number of output arguments.
 
 
-->[c,d]=exampl()
               !--error 59 
Wrong number of output arguments.
 
 
-->c=exampl()
 c  =
 
 
       c(1)
 
    1.    2.    3.  
    4.    5.    6.  

If I change varargout_list to varargout like this

function varargout=exampl()    
    varargout=list(ex())        
endfunction

and call exampl(), I get the following errors-

-->[c,d,e]=exampl()
 !--error 21 
Invalid index.

-->[c,d]=exampl()
 !--error 21 
Invalid index.

-->c=exampl()
 c  =
 
    1.    2.    3.  
    4.    5.    6.


How can I get varargout to work for any number of o/p arguments?