Method inlined in source1.cpp and called in source2.cpp

[Alex Vinokur]

Is it possible to call in source2.cpp a method inlined in source1.cpp?

--- File foo.h ---
#ifndef FOO_H
#define FOO_H

struct Foo { void foo (); };

#endif
------------------


--- File foo1.cpp ---
#include "foo.h"
inline void Foo::foo() {}
---------------------


--- File foo2.cpp ---
#include "foo.h"

int main ()
{
Foo f;
f.foo();

return 0;
}
---------------------


--- Compilation ---

$ gpp --version
gpp.exe (GCC) 3.4.1
[---omitted---]

$ gpp foo1.cpp foo2.cpp
c:/djgpp/tmp/cckdogiI.o(.tex t+0x24):foo2.cp p: undefined reference to `Foo::foo()'
collect2: ld returned 1 exit status

-------------------


--
Alex Vinokur
email: alex DOT vinokur AT gmail DOT com

http://mathforum.org/library/view/10978.html

http://sourceforge.net/users/alexvn

[Jason Heyes]

Re: Method inlined in source1.cpp and called in source2.cpp

"Alex Vinokur" <alexvn@big-foot.com> wrote in message
news:2vr9anF2q4 c1uU1@uni-berlin.de...[color=blue]
> Is it possible to call in source2.cpp a method inlined in source1.cpp?
>
> --- File foo.h ---
> #ifndef FOO_H
> #define FOO_H
>
> struct Foo { void foo (); };
>
> #endif
> ------------------
>
>
> --- File foo1.cpp ---
> #include "foo.h"
> inline void Foo::foo() {}
> ---------------------
>
>
> --- File foo2.cpp ---
> #include "foo.h"
>
> int main ()
> {
> Foo f;
> f.foo();
>
> return 0;
> }
> ---------------------
>
>
> --- Compilation ---
>
> $ gpp --version
> gpp.exe (GCC) 3.4.1
> [---omitted---]
>
> $ gpp foo1.cpp foo2.cpp
> c:/djgpp/tmp/cckdogiI.o(.tex t+0x24):foo2.cp p: undefined reference to
> `Foo::foo()'
> collect2: ld returned 1 exit status
>
> -------------------
>
>
> --
> Alex Vinokur
> email: alex DOT vinokur AT gmail DOT com
> http://mathforum.org/library/view/10978.html
> http://sourceforge.net/users/alexvn[/color]

No. You have to inline the function in the header file.

[Gernot Frisch]

Re: Method inlined in source1.cpp and called in source2.cpp


"Alex Vinokur" <alexvn@big-foot.com> schrieb im Newsbeitrag
news:2vr9anF2q4 c1uU1@uni-berlin.de...[color=blue]
> Is it possible to call in source2.cpp a method inlined in
> source1.cpp?
>
> --- File foo.h ---
> #ifndef FOO_H
> #define FOO_H
>
> struct Foo { void foo (); };
>
> #endif
> ------------------
>
>
> --- File foo1.cpp ---
> #include "foo.h"
> inline void Foo::foo() {}
> ---------------------
>
>
> --- File foo2.cpp ---
> #include "foo.h"
>
> int main ()
> {
> Foo f;
> f.foo();
>
> return 0;
> }
> ---------------------
>
>
> --- Compilation ---
>
> $ gpp --version
> gpp.exe (GCC) 3.4.1
> [---omitted---]
>
> $ gpp foo1.cpp foo2.cpp
> c:/djgpp/tmp/cckdogiI.o(.tex t+0x24):foo2.cp p: undefined reference to
> `Foo::foo()'
> collect2: ld returned 1 exit status
>
> -------------------[/color]

3 ways:
- inline in the header
- write an .inc file and include it in the header (for the compiler
that same as writing in the header)
- get an compiler that can handle the export keyword - there's ony one
from comeau and for portability I suggest not to use it.

HTH,
Gernot

[angelo]

Re: Method inlined in source1.cpp and called in source2.cpp

Gernot Frisch wrote:[color=blue]
> - get an compiler that can handle the export keyword - there's ony one
> from comeau and for portability I suggest not to use it.
>
> HTH,
> Gernot[/color]

If I am correct, export is for templates only, right? So in his case
export is not applicable.

[Gernot Frisch]

Re: Method inlined in source1.cpp and called in source2.cpp


"angelo" <minz0724@163.c om> schrieb im Newsbeitrag
news:41987a8f$1 @newsgate.hku.h k...[color=blue]
> Gernot Frisch wrote:[color=green]
>> - get an compiler that can handle the export keyword - there's ony
>> one from comeau and for portability I suggest not to use it.
>>
>> HTH,
>> Gernot[/color]
>
> If I am correct, export is for templates only, right? So in his case
> export is not applicable.[/color]

Ah. Sorry you're totally right. I was writing faster than thinking.

[Thomas Maier-Komor]

Re: Method inlined in source1.cpp and called in source2.cpp

Gernot Frisch wrote:[color=blue]
> "angelo" <minz0724@163.c om> schrieb im Newsbeitrag
> news:41987a8f$1 @newsgate.hku.h k...
>[color=green]
>>Gernot Frisch wrote:
>>[color=darkred]
>>>- get an compiler that can handle the export keyword - there's ony
>>>one from comeau and for portability I suggest not to use it.
>>>
>>>HTH,
>>>Gernot[/color]
>>
>>If I am correct, export is for templates only, right? So in his case
>>export is not applicable.[/color]
>
>
> Ah. Sorry you're totally right. I was writing faster than thinking.
>[/color]

I think you meant extern inline, which requires an inline declaration
in all translation units and an extern inline definition only in one.
This feature is supported by few compilers.

Tom

[Greg Comeau]

Re: Method inlined in source1.cpp and called in source2.cpp

In article <2vr9q1F2nmgbvU 1@uni-berlin.de>,
Gernot Frisch <Me@Privacy.net > wrote:[color=blue]
>
>"Alex Vinokur" <alexvn@big-foot.com> schrieb im Newsbeitrag
>news:2vr9anF2q 4c1uU1@uni-berlin.de...[color=green]
>> Is it possible to call in source2.cpp a method inlined in
>> source1.cpp?
>>
>> --- File foo.h ---
>> #ifndef FOO_H
>> #define FOO_H
>>
>> struct Foo { void foo (); };
>>
>> #endif
>> ------------------
>>
>>
>> --- File foo1.cpp ---
>> #include "foo.h"
>> inline void Foo::foo() {}
>> ---------------------
>>
>>
>> --- File foo2.cpp ---
>> #include "foo.h"
>>
>> int main ()
>> {
>> Foo f;
>> f.foo();
>>
>> return 0;
>> }
>> ---------------------
>>
>>
>> --- Compilation ---
>>
>> $ gpp --version
>> gpp.exe (GCC) 3.4.1
>> [---omitted---]
>>
>> $ gpp foo1.cpp foo2.cpp
>> c:/djgpp/tmp/cckdogiI.o(.tex t+0x24):foo2.cp p: undefined reference to
>> `Foo::foo()'
>> collect2: ld returned 1 exit status
>>
>> -------------------[/color]
>
>3 ways:
>- inline in the header
>- write an .inc file and include it in the header (for the compiler
>that same as writing in the header)
>- get an compiler that can handle the export keyword - there's ony one
>from comeau and for portability I suggest not to use it.[/color]

If you mean portability across OSs, well Comeau supports the popular
ones and we are always willing and capable to bring it to others,
and in a reasonable timeframe and cost, and of course already do custom
ports with a goal of complete functionality and parts. If you mean
portability across compilers, then sure, this should be given
consideration.

BTW, I may be missing the point, but it seems to me that the
OPS question is strictly about cross translation unit inline'ing,
which hence makes suggesting export mostly a neutral issue.
--
Greg Comeau / Comeau C++ 4.3.3, for C++03 core language support
Comeau C/C++ ONLINE ==> http://www.comeaucomputing.com/tryitout
World Class Compilers: Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?

[Greg Comeau]

Re: Method inlined in source1.cpp and called in source2.cpp

In article <cn9vnv$7ba$1@w sc10.lrz-muenchen.de>,
Thomas Maier-Komor <maierkom@lpr .e-technik.no-spam.tu-muenchen.de> wrote:[color=blue]
>Gernot Frisch wrote:[color=green]
>> "angelo" <minz0724@163.c om> schrieb im Newsbeitrag
>> news:41987a8f$1 @newsgate.hku.h k...
>>[color=darkred]
>>>Gernot Frisch wrote:
>>>
>>>>- get an compiler that can handle the export keyword - there's ony
>>>>one from comeau and for portability I suggest not to use it.
>>>>
>>>>HTH,
>>>>Gernot
>>>
>>>If I am correct, export is for templates only, right? So in his case
>>>export is not applicable.[/color]
>>
>>
>> Ah. Sorry you're totally right. I was writing faster than thinking.
>>[/color]
>
>I think you meant extern inline, which requires an inline declaration
>in all translation units and an extern inline definition only in one.[/color]

I suspect that you guys are still trying to compare this to export,
that is, every translation unit which uses an inline function should
define it as per ODRing (of course a given compiler may be smarter
than this, but that's a seperate issue).
[color=blue]
>This feature is supported by few compilers.[/color]

Comeau C++ can support extern inline functions too.
--
Greg Comeau / Comeau C++ 4.3.3, for C++03 core language support
Comeau C/C++ ONLINE ==> http://www.comeaucomputing.com/tryitout
World Class Compilers: Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?