   Determining if a file of directory exists
  I know this might be easy for some of you, but how do you figured out wether a file of directory exists, in c++. I tried using the makedir one, mkdir("directory");, but that's just annoying cause it generates a directory. Edit: oh yeah, also could you show me how to open up a webpage using c++?Thanx in advance!   
  I think that CreateFile is either what your looking for, either completely off topic :) (as you didnt mention using win32...)Janta   ;  Or ...#include <fstream>#include <iostream>#include <string>int main(){    std::string strFileName = "SomeFile.txt";    std::ifstream test( strFileName.c_str(), std::ios::in );if ( ! test )    {   // Failed to open file. Probably doesn't exist.    std::cout << "Could not open file " << strFileName << "!\n";    }    else    {   // File opened. Definitely exists.   std::cout << "File " << strFileName << " opened successfully.\n";    }    return 0;}Dunno about directories, tho.   ;  Thanx, i'll try those! Yeah it is win32.Do you also know how to open up a webpage using c++?   ;  Or boost::filesystem::exists() and boost::filesystem::is_directory().Quote:Do you also know how to open up a webpage using c++?Open a socket to the webserver.Send the appropriate HTTP request.Retrieve the data sent by the server.   ;  An alternative to Red Ant's solution is to check ifstream::fail(), but if memory serves me correctly, that function can mislead.  The following algorithm describe the problem:Open a nonexistant file with an ifstream object.Close file.Using the same object, open an existing file.Check the fail() method of the ifstream object.Note that step 4 will yield "true", indicating that the existant file does not exist.GetFileAttributesEx() will return NULL if a file doesn't exist.   ;Quote:Original post by Anonymous PosterAn alternative to Red Ant's solution is to check ifstream::fail(), but if memory serves me correctly, that function can mislead.Actually, you would check is_open(). Using operator!() as Red Ant did is roughly equivalent to using fail() (it also trips on badbit and eofbit).Quote:Using the same object, open an existing file.Yup. Clear the status flags with fstream::clear().   ;Quote:Original post by FrunyQuote:Original post by Anonymous PosterUsing the same object, open an existing file.Yup. Clear the status flags with fstream::clear().Ah, I see.;Quote:Original post by FrunyQuote:Do you also know how to open up a webpage using c++?Open a socket to the webserver.Send the appropriate HTTP request.Retrieve the data sent by the server.Ummm.... sorry, let me clarify myself, open up internet explorer and having a webpage load.[Edited by - TheC00L1 on June 6, 2006 9:26:14 PM];  You can also use the Win32 API GetFileAttributes, which will return INVALID_FILE_ATTRIBUTES if the file/directory does not exist.   