> Hello everyone,
>
> Can anyone tell me what is the following code meaning? By the
> way, it is not > important to me, I just read the code in 3rd party and I
am just curious.
> type
> TWhatever = type string;
> Is that same as this one without word type?
> type
> TWhatever = string;
The first example is a strongly typed alias, it is similar to the second
example, but its considered a new type by the compiler.
ie - TWhatever will be converted to a string for assigning, but it won't be
compatible when used in var parameters.
If you had a procedure
procedure FarSide(var Value: String)
begin
//some code...
end;
You could not do this:
var Whatever:TWhatever;
begin
FarSide(Whatever); //Error....
end;
>
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