Thread: small io problem

For some reason i am having trouble opening a file with fopen.

Code:

#include <stdio.h>

main()
{
      char quit;
      FILE* file = 0;
      
      file = fopen("Test", "r+");
      
      if(file == 0)
      {
              printf("file dose not exist\n");
      }
      
      while((quit = getchar()) != 'q')
      {
                  
      }
}

For some reason this will end up printing out "file dose not exist" for all of the following:
file = fopen("C:\Binary\Test", "r+");
file = fopen("\Binary\Test", "r+");
file = fopen("\Test", "r+");
file = fopen("Test", "r+");

Yes Test is a file that is in the folder Binary of which is in the C drive.

What is going on?

Code:

#include <stdio.h>

main()
{
      char quit;
      FILE* file = 0;

      file = fopen("C:\\Binary\\Test", "r+");

      
      if(file == NULL)
      {
              printf("file dose not exist\n");
      }
      
      while((quit = getchar()) != 'q')
      {
                  
      }
      
      if(file != NULL)
        fclose(file);

}

This still dose not work. God i hate doing file io after not doing it for so long kills my mojo every time.

Make sure you have permission to write and read to the file.
Besides that, fopen doesn't set an error flag when it fails? I don't have access to doc right now, so I can't confirm.

Maybe not, but it's better to be safe.

I would go and check the file extension and included them within the path. Fopen will fail even if file extensions donst match. So make sure the Test.*** ext is and include them.

ssharish

I just hope no one who is programming is silly enough not to realize that Windows hides them by default and thinks that most files do not have an extension.

Boom, it was the extention. I am calling bull $!*% on windows. I right clicked to get the path and it did not say .text.