Finding the executing C++ program location (win32)

[yzz]

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

[cloud]

On Apr 12, 1:48 pm, "yzz" <[e-mail]:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

Hi,

'CurrentDir' - is the function which will return the current directory
in which the program stands. Also there is one more method to find the
path, please refer K&R C for exact function names.

- vinod

[Zephryn Xirdal]

En Thu, 12 Apr 2007 10:48:29 +0200, yzz <yz****@gmail.comescribió:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

Fist string array passed to main is the program name. Then you've to
substring to last '\' delimiter and you've got it.

int main(int argv,char *argc[]);

argc[0] -Is exe's path as null terminated strign.

--
Visita mi blog principal: http://rfog.blogsome.com
Y este sobre programación: http://geeks.ms/blogs/rfog
Libros, ciencia ficción y programación
========================================
Sólo en la filosofía es donde cada pensador, cuando es original, determina
no únicamente lo que quiere responder, sino lo que quiere preguntar...
para responder al concepto de filosofía.
-- Georg Simmel. (1858-1918) Filósofo alemán.

[=?iso-8859-1?q?Erik_Wikstr=F6m?=]

On 12 Apr, 11:25, "Zephryn Xirdal" <[e-mail]>
wrote:

En Thu, 12 Apr 2007 10:48:29 +0200, yzz <[e-mail]ó:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

Fist string array passed to main is the program name. Then you've to
substring to last '\' delimiter and you've got it.

int main(int argv,char *argc[]);

argc[0] -Is exe's path as null terminated strign.

Yes, but there's no guarantee that the actual path is included, just
the name the file was called with.

--
Erik Wikström

[Zephryn Xirdal]

En Thu, 12 Apr 2007 11:48:00 +0200, Erik Wikström
<er****@student.chalmers.seescribió:

On 12 Apr, 11:25, "Zephryn Xirdal" <[e-mail]>
wrote:

>En Thu, 12 Apr 2007 10:48:29 +0200, yzz <[e-mail]ó:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

Fist string array passed to main is the program name. Then you've to
substring to last '\' delimiter and you've got it.

int main(int argv,char *argc[]);

argc[0] -Is exe's path as null terminated strign.

Yes, but there's no guarantee that the actual path is included, just
the name the file was called with.

--
Erik Wikström

Then use GetCommandLine win32 API function. SDK says: "The operating
system may prepend a fully qualified path to an executable name that is
provided without a fully qualified path"

--
Visita mi blog principal: http://rfog.blogsome.com
Y este sobre programación: http://geeks.ms/blogs/rfog
Libros, ciencia ficción y programación
========================================
Sólo en la filosofía es donde cada pensador, cuando es original, determina
no únicamente lo que quiere responder, sino lo que quiere preguntar...
para responder al concepto de filosofía.
-- Georg Simmel. (1858-1918) Filósofo alemán.

[Gianni Mariani]

yzz wrote:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

There is no C++ standard way to do this and so totally off topic here !

In win32, the best way is to use:

char l_name[ MAX_PATH + 1 ];
l_name[ sizeof( l_name ) -1] = 0;
::GetModuleFileName( NULL, l_name, sizeof( l_name ) -1 );

In unix, the not 100% reliable but mostly good way is to take argv[0]
and if the name does not start with "/" then get the working directory
and slap it in front.
if ( argv[ 0 ][ 0 ] == '/' )
{
at::FilePath l_filepath( argv[ 0 ] );
return l_filepath.Head().StlString();
}

at::FilePath l_current_dir = at::CurrentDirectory();
return (
l_current_dir / std::string( argv[ 0 ] )
).Head().Clean().StlString();

(with the austria C++ file path stuff in the alpha
http://netcabletv.org/public_releases/)

[Miguel Gimenez]

Zephryn Xirdal wrote:

En Thu, 12 Apr 2007 11:48:00 +0200, Erik Wikström
<er****@student.chalmers.seescribió:

>On 12 Apr, 11:25, "Zephryn Xirdal" <[e-mail]>
wrote:

>>En Thu, 12 Apr 2007 10:48:29 +0200, yzz <[e-mail]ó:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Thanks

Fist string array passed to main is the program name. Then you've to
substring to last '\' delimiter and you've got it.

int main(int argv,char *argc[]);

argc[0] -Is exe's path as null terminated strign.

Yes, but there's no guarantee that the actual path is included, just
the name the file was called with.

--
Erik Wikström

Then use GetCommandLine win32 API function. SDK says: "The operating
system may prepend a fully qualified path to an executable name that is
provided without a fully qualified path"

"May" is different from "Must". You have no guarantee, again.

P.S. Me gusta tu blog

--
Regards
Miguel Giménez

[Zeppe]

yzz wrote:

Hi,
How can I find the directory the C++ exe file is running from
e.g. If I stand in C: and I execute c:\foo\foo.exe the program output
will be c:\foo

Short answer: you can't in standard C++, so you are off topic.

A little bit longer answer: you can't in standard C++, however there are
some nice libraries called "boost", some of those will probably inserted
on the next C++ standard. One of them, that probably is not yet in but
is in the Stroustrup wish list ( not the first guy around :) ) is the
filesystem library. Look at:
http://www.boost.org/libs/filesystem...m#current_path

probably this is the most portable and close to the standard way to do
what you are asking.

Regards,

Zeppe