Re: [boost] [filesystem] GetFileAttributesExA and Windows 95

From: Beman Dawes (bdawes_at_[hidden])
Date: 2005-09-28 20:56:56

"Reece Dunn" <msclrhd_at_[hidden]> wrote in message 
news:dhf67p$5n7$1_at_sea.gmane.org...
>...
> The proper way to implement exists( ... ) on Windows is to do:
>
>    #include "shlwapi.h"
>    // link to shlwapi.lib
>
>    bool exists( const path & ph )
>    {
>       return ::PathFileExistsA( ph.string().c_str()) == TRUE;
>    }

In proposal to the standards committee, exists() is specified in terms of 
the results of POSIX stat(). On Windows, the best way to achieve that might 
be to use Windows Run-Time library's _stat() and _wstat() functions. The 
docs for those functions specifically say "A return value of -1 indicates an 
error, in which case errno is set to ENOENT, indicating that the filename or 
path could not be found."

--Beman