Re: [OctDev] Re: struct ("a",{1},"b",{1,2})

[Paul K. <pki...@us...>]

Yes, I did do a number of compatibility changes.   struct with these
changes is now part of octave.

Sorry for breaking things...

Does the new interface do everything you need?  Or is there
some way we can extend it to do what you need?

I don't remember why I didn't enable the obvious behaviour of
struct() creating an empty struct.

- Paul

On Mar 30, 2004, at 3:26 PM, Etienne Grossmann wrote:

>
>   Hi again, sorry to answer to myself. I guess the effect I described
> in my previous mail are due to an attempt to imitate the other brand,
> which behaves like:
> ======================================================================
>>> a = struct('x',{1},'y',{1,2})
>
> a =
> 1x2 struct array with fields:
>     x
>     y
>
>>> a.x
>
> ans =
>      1
> ans =
>      1
>
>>> a.y
>
> ans =
>      1
> ans =
>      2
> ======================================================================
>
>   Hmm. So no more structs taking lists as values? I mean 'cells as
> values', since lists seem to be doomed?
>
>   Etienne
>
> On Tue, Mar 30, 2004 at 02:51:12PM -0500, Etienne Grossmann wrote:
> #
> #   Hi all,
> #
> # I use, octave 2.1.53, cvs octave-forge, so my prob could be due to 
> not
> # using 2.1.57.
> #
> #   Is that the desired behavior of struct()? Are those bugs introduced
> # between r 1.2 and r 1.3 of struct.cc?
> #
> # 
> ======================================================================
> #   octave:3> struct ("a",{1},"b",{1,2})
> #   ans =
> #   {  a =
> #       (,
> #         [1] = 1
> #         [2] = 1
> #       ,)
> #
> #     b =
> #       (,
> #         [1] = 1
> #         [2] = 2
> #       ,)
> #   }
> #
> #   octave:4> struct ("a",{1},"b",{1,2},"c",{})
> #   error: struct: dimensions of parameter 4 do not match those of 
> parameter 6
> #   octave:4> struct ()
> #
> #   *** struct:
> #
> #   struct('field',value,'field',value,...)
> #
> #   Create a structure and initialize its value.
> #
> #   struct('field',{values},'field',{values},...)
> #
> #   Create a structure array and initialize its values.  The dimensions
> #   of each array of values must match.  Singleton cells and non-cell 
> values
> #   are repeated so that they fill the entire array.
> #
> #   struct('field',{},'field',{},...)
> #
> # Create an empty structure array.
> # 
> ======================================================================
> #
> #   Once upon a time, struct() returned an empty struct, without need 
> to
> # do struct([]). No field-value pair -> empty struct, right?
> #
> #   I don't recall that there's anything wrong with having struct 
> values
> # being lists, my code has relied on this for some time now.
> #
> #   Any tips welcome,
> #
> #   Etienne
> #
> # --
> # Etienne Grossmann ------ http://www.cs.uky.edu/~etienne
>
> -- 
> Etienne Grossmann ------ http://www.cs.uky.edu/~etienne
>
>
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