Each time the program you are debugging stops, dbx prints the source line associated with the stop location. At each program stop, dbx resets the value of the current function to the function in which the program is stopped. Before the program starts running and when it is stopped, you can move to, or navigate through, functions and files elsewhere in the program. You can navigate to any function or file that is part of the program. Navigating sets the current scope (see Program Scope). It is useful for determining when and at what source line you want to set a stop at breakpoint.