Current working directory.

kobi_hikri · #1 06-Jun-2005, 12:18

How do I get the current working directory name ?

I read about getcwd but I can't use it. The compiler shouts that it can't open <unistd.h> .
I'm interested in an ansi-c function that will do the job.

Anyone ? Should I write my own function based on argv[0] ?

Kobi.

davekw7x · #2 06-Jun-2005, 13:46

Quote:

Originally Posted by kobi_hikri

How do I get the current working directory name ?

I read about getcwd but I can't use it. The compiler shouts that it can't open <unistd.h> .
I'm interested in an ansi-c function that will do the job.

Anyone ? Should I write my own function based on argv[0] ?

Kobi.

There is no standard C (or C++) library function for getcwd --- it's operating system dependent. Here's what works for me with Borland bcc32 and Microsoft Visual C++. (For other, non-unix like, compilers, you can grep around in your include directory to see if there is something like getcwd().)

CPP / C++ / C Code:

#include <direct.h> /* For Borland bcc32 or MS VC++ 6 */
#include <stdio.h>

int main(int argc, char *argv[])
{
  char buffer[256];

  printf("argv[0]: <%s>\n", argv[0]);

  if (!getcwd(buffer, 256)) { /* returns null if path is too long */
    printf("Path name is too long\n");
  }
  else {
    printf("Current Working Directory is <%s>\n", buffer);
  }
  return 0;
}

Problem with argv[0]:

1. Not all compilers generate code that puts the entire path in argv[0] (in my case, Borland bcc32 does, but the Microsoft compilers give just the program name, not the path).

2. Even with the Borland compiler, argv[0] gives the path to the executable program, not the current working directory from which the program was invoked.

Regards,

Dave

kobi_hikri · #3 06-Jun-2005, 16:07

Hey, Dave.
Thank's for your code and advice.
I will use your example and try to write my own generic function and post it.

Best regards,
Kobi.

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Current working directory.

Then I will write my own code :-)