Assigning to a Record

[Zren]

Is there a way to assign values to a variable that is a record like Init for Arrays? I just want to know if there's an easier way then the latter.

code:

type STRUCTURE :     record         a : int         b : int         c : int     end record var thing :STRUCTURE thing := init (1, 2, 3) % Instead of... thing.a:=1 thing.b:=2 thing.c:=3

If not is there a way to make a procedure to assign the values accordingly for the specified record structure, to immitate init? Like:

code:

procedure assignData (object, a, b, c) [object] . a := a [object] . b := b [object] . c := c end assignData assignData (thing,1,2,3)

[Nick]

just to point out there are errors in your code such as var thing:STRUCTURE it should be var thing:^STRUCTURE

also when calling an object in Turing we use -> instead of . so in your code it should be more like thing->a

[Zren]

Eh? Pointers. I through in the typeset and structure since it's closer to what I had for my use since it's being used as a datatype. Though I don't quite comprehend the entirety of how pointers are useful. Nor does this work.

code:

type DataType:     record         a : int     end record var thing :^DataType thing->a:=1

[Tony]

pointers are for objects, records work fine without them.

I think the confusion came from the fact that you've named your record as an "object"

I think your procedure assignData (object, a, b, c) should work

[Zren]

So I take it there's no predefined way then eh.

Sorry I'm used object since this is for Vectors wich leads to Polygones wich leads to Objects...kinda. I ment variable.

But this came out of Init in the help files...

Quote:

Initialization of records and unions is analogous to initializing arrays. Values are listed in the order in which they appear in the type. See array, record, and union types.

Wich makes me wonder if there really is a way to use init for records...

Though I'm getting by with assignData (i, a, b, c) where i is the number in a big array so it works for my purpose. ^^

[Tony]

ah, interesting. Have you tried using init on a record?

Look through the record documentation, maybe they have an example somewhere.

[Zren]

It doesn't say anything about init in the record help file, let alone an example. Oh well, thanks Tony and momop. Even if momop confused me more than anything else.

[ericfourfour]

Turing Documentation:init wrote:

Initialization of records and unions is analogous to initializing arrays. Values are listed in the order in which they appear in the type.

Example:

Turing:

type Foo :     record         i : int         r : real         s : string     end record     var foo : Foo := init (42, 1.111, "foo")

[Zren]

ericfourfour @ Mon Jan 07, 2008 5:12 pm wrote:

Example:

Turing:

type Foo :     record         i : int         r : real         s : string     end record     var foo : Foo := init (42, 1.111, "foo")

Oh I see, so you can only assign values to it when declaring the Data type apparently, no wonder it never worked for me. Thanks ericfourfour.