[Gambas-user] Struct with Array Field
T Lee Davidson
t.lee.davidson at gmail.com
Thu Apr 6 19:08:01 CEST 2023
On 4/6/23 02:35, Brian G wrote:
> In c terms which structure are interface for, strings and arrays are just pointer that are not initialized to a value until
> something is assigned to them.
>
> When you do a mstrct = new mystruct it creates the structure with null pointers for those fields.
To my knowledge C does not have a "new" expression/statement. So, you must be talking about Gambas behavior, and therfore your
statement is incorrect. Try it for yourself and see what it prints:
[code]
Public Struct elevation
a As Short
b As Long
c As Float
d As String
End Struct
Public Sub main()
Dim a As New Elevation
Print a.a, a.b, a.c, a.d
End
[/code]
BTW, top-posting leads to messy threads.
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>
> --
> Thanks
> Brian G
>
> Wednesday, 05 April 2023, 07:55AM -07:00 from T Lee Davidson t.lee.davidson at gmail.com <mailto:t.lee.davidson at gmail.com>:
>
> On 4/5/23 10:57, Mayost Sharon wrote:
> > first thanks
> >
> > Is it supposed to be like this?
> > For each field that is an array I will have to say NEW separately
> >
> > The fields are inside a Struct
> > I thought that if I do NEW to Struct
> > This will do it on all fields
> >
> > Thanks
>
> Simple native datatypes (such as String, Integer, Boolean) will be automatically initialized. But, objects (such as String[],
> Integer[], Boolean[]), which are objects of classes and have properties and methods, must be initialized with the NEW keyword.
>
>
> --
> Lee
--
Lee
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