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From: WJ on 20 Jan 2010 17:50
can "template" be used in .C file?

I wanted to write a arameterized function, but "template" would not compile.
I am thinking that the template keyword is not supported in .C file, but I
just want to confirm.

Thanks.

WJ
From: Giovanni Dicanio on 20 Jan 2010 18:21
"WJ" <WJ(a)discussions.microsoft.com> ha scritto nel messaggio
news:84083384-1716-4788-B3B5-1E564791DB57(a)microsoft.com...

> can "template" be used in .C file?
>
> I wanted to write a arameterized function, but "template" would not
> compile.
> I am thinking that the template keyword is not supported in .C file, but I
> just want to confirm.

Templates are C++ only.

In some cases you may want to use the preprocessor to simulate templates in
C, e.g.

// C++ with templates:

template <typename T>
T Square( const T & x )
{
return x*x;
}

// C with preprocessor:

#define SQUARE( x ) (x) * (x)

Of course, with preprocessor you don't have the robusteness and expressivity
of C++ templates.

HTH,
Giovanni



From: Drew on 20 Jan 2010 18:23
Short answer is no. But you can compile the code as C++ either by renaming
with a .cpp extension or specifying Compile as C++ Code under properties for
the file under C/C++/Advanced.

Drew

"WJ" <WJ(a)discussions.microsoft.com> wrote in message
news:84083384-1716-4788-B3B5-1E564791DB57(a)microsoft.com...
> can "template" be used in .C file?
>
> I wanted to write a arameterized function, but "template" would not
> compile.
> I am thinking that the template keyword is not supported in .C file, but I
> just want to confirm.
>
> Thanks.
>
> WJ


From: Joseph M. Newcomer on 20 Jan 2010 23:41
C does not have the concept of templates. That's why it is called C. If it supported
templates, it would be called C++.
joe

On Wed, 20 Jan 2010 14:50:09 -0800, WJ <WJ(a)discussions.microsoft.com> wrote:

>can "template" be used in .C file?
>
>I wanted to write a arameterized function, but "template" would not compile.
>I am thinking that the template keyword is not supported in .C file, but I
>just want to confirm.
>
>Thanks.
>
>WJ
Joseph M. Newcomer [MVP]
email: newcomer(a)flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm
From: Tom Serface on 21 Jan 2010 02:15
Several people have already answered your question, but I just wanted to add
that I don't see any particular reason to use vanilla "C" any longer. Any
platform that can support C would certainly support C++ these days and
almost all of the C++ compilers support templates in one form or another.

Unless you need something specific for calling convention, I wouldn't use C
at all. That gets rid of the confusion.

Tom

"WJ" <WJ(a)discussions.microsoft.com> wrote in message
news:84083384-1716-4788-B3B5-1E564791DB57(a)microsoft.com...
> can "template" be used in .C file?
>
> I wanted to write a arameterized function, but "template" would not
> compile.
> I am thinking that the template keyword is not supported in .C file, but I
> just want to confirm.
>
> Thanks.
>
> WJ

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