Re: [Dev-C++] Is it possible - templates (.h and .cpp) ?

[Carla M. W. <ca...@lr...>]

Hi,

Thank you very much. This was exactly what I wanted to know.
It is a pitty that it is not possible to divide the implementation in .h
and .cpp files.

Thanks, Carla.


On Fri, 30 Apr 2004, Jorge Mazzonelli wrote:

> Hi,
>     excuse me but I'm just a newbie in C++ (most of my developpements=20
> are made in ANSI-C) but was curious about the subject and made some=20
> google search and found this URL:=20
> http://www.cplusplus.com/doc/tutorial/tut5-1.html. There, the author=20
> says at the end the following:
>=20
> /The macro-like functionality of templates, forces a restriction for=20
> multi-file projects: the implementation (definition) of a template class=
=20
> or function _must_ be in the same file as the declaration. That means we=
=20
> cannot separate the interface in a separate header file and we must=20
> include both interface and implementation in any file that uses the=20
> templates. /
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> /Going back to the library of functions, if we wanted to make a library=
=20
> of function templates, instead of creating a header file (*.h*) we=20
> should create a "template file" with both the interface and=20
> implementation of the function templates (there is no convention on the=
=20
> extension for this type of file other than there be no extension at all=
=20
> or to keep the .h). The inclusion more than once of the same template=20
> file with both declarations and definitions in a project doesn't=20
> generate linkage errors, since they are compiled on demand and compilers=
=20
> that allow templates should be prepared to not generate duplicate code=20
> in these cases. /
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>=20
>=20
>=20
>     Hope this helped.
>=20
>           Jorge
>=20
>=20
> Ricardo Amores Hern=E1ndez wrote:
>=20
> > She=B4s not talking about Dev-C++ templates, but *C++ Language*=20
> > Templates. ;)
> > More specifically she asked if gcc separate compilation of templates.
> > By the way, i=B4m interested in knowing that too :)
> >
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> --=20
> *Jorge H. MAZZONELLI*
> e-mail @: jma...@ia... <mailto:jma...@ia...>
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