stdcall and __cdecl

[vinu_gt@yahoo.com]

Hi All,

I had a question about stdcall and cdecl calling convention related to
Visual Studio 6.0

I have a console project and in Project->setting->C++->Code Generation
The "calling convention" is __cdecl.
1) Does this mean that function calls(meaning i call a function in my
program or a function in a dll)
in my program will assume that the called functions have been compiled
with __cdecl calling standard and as
such use __cdecl convention to call those functions.
Or
2) Does it mean that "by default" the functions in my program will be
constructed with __cdecl calling convention.

Does it work the same way on both windows and unix.

Could you also kindly direct me to some nice article which explains
this in detail.

Thanks
Vinu

[John Carson]

Re: stdcall and __cdecl

<vinu_gt@yahoo. com> wrote in message
news:1120488687 .922465.68610@z 14g2000cwz.goog legroups.com[color=blue]
> Hi All,
>
> I had a question about stdcall and cdecl calling convention related to
> Visual Studio 6.0[/color]

Any questions that look like they may be Microsoft specific (like this one)
are better asked in

microsoft.publi c.vc.language
[color=blue]
> I have a console project and in Project->setting->C++->Code Generation
> The "calling convention" is __cdecl.
> 1) Does this mean that function calls(meaning i call a function in my
> program or a function in a dll)
> in my program will assume that the called functions have been compiled
> with __cdecl calling standard and as
> such use __cdecl convention to call those functions.
> Or
> 2) Does it mean that "by default" the functions in my program will be
> constructed with __cdecl calling convention.[/color]

It means that any function will be assumed to use the __cdecl convention
unless the function prototype indicates otherwise. Function declarations in
windows file header almost always *will* indicate otherwise, usually via
macros like CALLBACK or WINAPI.
[color=blue]
> Does it work the same way on both windows and unix.[/color]

Don't know.
[color=blue]
> Could you also kindly direct me to some nice article which explains
> this in detail.[/color]

Type in stdcall or cdecl in your compiler help file and you should get some
hits. Or do likewise at

http://msdn.microsoft.com/library/default.asp

--
John Carson

[Larry I Smith]

Re: stdcall and __cdecl

vinu_gt@yahoo.c om wrote:[color=blue]
> Hi All,
>
> I had a question about stdcall and cdecl calling convention related to
> Visual Studio 6.0
>
> I have a console project and in Project->setting->C++->Code Generation
> The "calling convention" is __cdecl.
> 1) Does this mean that function calls(meaning i call a function in my
> program or a function in a dll)
> in my program will assume that the called functions have been compiled
> with __cdecl calling standard and as
> such use __cdecl convention to call those functions.
> Or
> 2) Does it mean that "by default" the functions in my program will be
> constructed with __cdecl calling convention.
>
> Does it work the same way on both windows and unix.
>
> Could you also kindly direct me to some nice article which explains
> this in detail.
>
> Thanks
> Vinu
>[/color]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore98/html/_core_argument_passing_and_naming_conventions.asp

Note the differences under the "Stack cleanup" column.

Click the links (__cdecl, __stdcall, etc) for details of each.

Larry

[Larry I Smith]

Re: stdcall and __cdecl

Larry I Smith wrote:[color=blue]
> vinu_gt@yahoo.c om wrote:[color=green]
>>Hi All,
>>
>>I had a question about stdcall and cdecl calling convention related to
>>Visual Studio 6.0
>>
>>I have a console project and in Project->setting->C++->Code Generation
>>The "calling convention" is __cdecl.
>>1) Does this mean that function calls(meaning i call a function in my
>>program or a function in a dll)
>>in my program will assume that the called functions have been compiled
>>with __cdecl calling standard and as
>>such use __cdecl convention to call those functions.
>>Or
>>2) Does it mean that "by default" the functions in my program will be
>>constructed with __cdecl calling convention.
>>
>>Does it work the same way on both windows and unix.
>>
>>Could you also kindly direct me to some nice article which explains
>>this in detail.
>>
>>Thanks
>>Vinu
>>[/color]
>
> http://msdn.microsoft.com/library/de...onventions.asp
>
> Note the differences under the "Stack cleanup" column.
>
> Click the links (__cdecl, __stdcall, etc) for details of each.
>
> Larry[/color]

Here's two more articles that summarize it well:

http://www.unixwiz.net/techtips/win32-callconv-asm.html

http://www.unixwiz.net/techtips/win32-callconv.html

Larry