how to change the working directory to the location of the program

Question

I want to use c++ to open a file on Mac OS.

If I run the program under Xcode, the working directory is the same with the program, which is fine. However, if I try t

Answer 1

You can set a custom working directory for your project in Xcode. In Xcode 4 choose Edit Scheme from the Scheme menu in the project window toolbar to open the scheme editor. Select the Run step from the left side of the project editor. Click the Options button at the top of the scheme editor. Select the Use custom working directory checkbox. Click the button on the right side of the text field to choose the working directory.

Answer 2

Use the value $(PROJECT_DIR) in the working directory in your scheme debug settings:

Answer 3

You could use chdir(), see here: Change the current working directory in C++.

Or if you could always just issue a system call (stdlib.h): http://www.cplusplus.com/reference/clibrary/cstdlib/system/. This won't be portable, but it might be good enough for what you need.

Answer 4

This is a really old post - updating some info for Xcode 12 (Sept 2020)

Step 1). Xcode -> Product -> Scheme -> Edit Scheme (or create a new one)

Step 2) RUN(DEBUG), Working Directory(Checkmark) and enter $(PROJECT_DIR) as a starting point.