Re: [ooc-compiler] Deep-copying STRING

[Tim T. <ra...@ed...>]

Hello!

> I need to do a deep copy of a variable of type STRING. What's the metho=
d?
> All I can find in the documentation is that STRING is a synonym for
> Object.String.
>=20
> Do I just do:
>=20
>   VAR newstring : STRING;
>=20
>   NEW (newstring);
>   newstring^ :=3D oldstring^;
>=20
> Frank Copeland

Instances of STRING or Object.String are inmutable, so normally there is =

no need to make a copy at all.

If you look at Object.Mod you'll see, that even String.ToString() will=20
return iteself for exactly that reason.

If you really need a copy it looks like you must use ToString16(), call=20
CharsUTF16() on the return value and use the result as parameter for=20
NewString16(). However possibly this does not work because of CharsUTF16 =

being read only, you have to try this.

One could add a Copy (and deep copy) method to Object (and implement=20
them for String). You have to ask Michael if this would be part of the=20
master plan. I fear that there might no simple generic way to implement=20
them (at least for deep copy), so most objects would not implement them. =

This might be OK, or might be not.

--=20
Gru=DF...
        Tim.