[fpc-pascal] alias a function + overload 'in'

[Marcos Douglas]

2011/12/18 Tomas Hajny <XHajT03 at hajny.biz>
>
> On 18 Dec 11, at 10:31, Marcos Douglas wrote:
> > On Sun, Dec 18, 2011 at 9:37 AM, Tomas Hajny <XHajT03 at hajny.biz> wrote:
> > > On 17 Dec 11, at 21:07, David Emerson wrote:
> > >
> > >> two little questions
> > >>
> > >> 1. Is it possible to make an alias to a function ... so rather than just
> > >> re-calling with the same parameters, it's actually the same thing? like the way
> > >> we can do, e.g., type natural = cardinal, or const GG = 6, but with a function?
> > > .
> > > .
> > >
> > > There are multiple solutions possible:
> > >
> > > 1) Making the functions public and creating the aliases as external:
> > >
> > > procedure X; public name 'X';
> > > begin
> > >  WriteLn (1);
> > > end;
> > >
> > > procedure Y; external name 'X';
> > >
> > > begin
> > >  X;
> > >  Y;
> > > end.
> >
> > What is this syntax using "public name"?
>
> This syntax allows calling of the published procedure / function from
> other object files (typically created in other compilers /
> programming languages); "public" says that calling from other objects
> files shall be possible and the optional "name" part allows you to
> specify a fixed name under which it is be accessible (in addition to
> the standard mangled name used by FPC).

Thank you.

Marcos Douglas