[fpc-pascal] Documentation, syntax diagrams

[Michael Van Canneyt]

On Fri, 10 Jan 2014, Constantine Yannakopoulos wrote:

> On Thu, Jan 9, 2014 at 9:55 AM, Sven Barth <pascaldragon at googlemail.com> wrote:
>       Am 08.01.2014 22:01, schrieb Michael Van Canneyt:
>             You can preview the result at
>
>             http://www.freepascal.org/~michael/ref/refch3.html
> 
> You might additionally mention that these type aliases also allow different operator and (AFAIK also) function overloads.
> 
> 
> Also, that they have different RTTI records, that is the TypeInfo() compiler function returns different pointers for the
> original and derived type, while for simple type aliases (no "type" after "=") it returns the same pointer.
> 
> In Delphi and I suppose in Lazarus this is often used in order to register a specific property editor for each property of an
> otherwise common type that has special semantics, e.g.
> 
> type
>   TFileName = type string;

I already mention all this.

Michael.