Re: Get function arguments number

[gianvito]

    Thanks for you reply...
    but args.length ( ) returns the number of the arguments passed to
    the C++ function ...
    
    I need to know how many arguments does the function that i pass as
    argument accepts.
    So, let's think I define a function in the octave prompt:
    F = @(x,y) x + y;
    
    Then I call the compiled C++ function:
    testCfunction(F);
    
    well...I'd like to know in C++ how many arguments has the function F
    (in this case two).
    
    So something as:
    octave_function func = args(0).function_value();
    
    func.arguments_number( );         // I need this function
    
    Is this possible? Thanks
    
    
    Il 02/01/2011 11:15, Jaroslav Hajek-2 [via Octave] ha scritto:

On Thu, Dec 30, 2010 at 6:46 PM, gianvito <[hidden email]> wrote:
>
> Hi all,
> I'm writing C++ code...I pass a function and get it using
>
> octave_function func = args(0).function_value();
>

Don't do this unless you really want, because this will ignore
function overloads. If you want to call the function, you should
simply do:
octave_value_list args = ....//prepare arguments
octave_value_list retval = args(0).do_multi_index_op(nargout, args);

> now...is possible to know how many arguments does that function take in
> input? I searched for some function but haven't found anything...
>
> Thanks

args.length()
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