Tcl_GetCwd(3)               Tcl Library Procedures               Tcl_GetCwd(3)


       Tcl_GetCwd, Tcl_Chdir - manipulate the current working directory

       #include <tcl.h>

       char *
       Tcl_GetCwd(interp, bufferPtr)


       Tcl_Interp    *interp      (in)      Interpreter in which to report an
                                            error, if any.

       Tcl_DString   *bufferPtr   (in/out)  This dynamic string is used to
                                            store the current working
                                            directory.  At the time of the
                                            call it should be uninitialized or
                                            free.  The caller must eventually
                                            call Tcl_DStringFree to free up
                                            anything stored here.

       char          *path        (in)      File path in UTF-8 format.

       These procedures may be used to manipulate the current working
       directory for the application.  They provide C-level access to the same
       functionality as the Tcl pwd command.

       Tcl_GetCwd returns a pointer to a string specifying the current
       directory, or NULL if the current directory could not be determined.
       If NULL is returned, an error message is left in the interp's result.
       Storage for the result string is allocated in bufferPtr; the caller
       must call Tcl_DStringFree() when the result is no longer needed.  The
       format of the path is UTF-8.

       Tcl_Chdir changes the applications current working directory to the
       value specified in path.  The format of the passed in string must be
       UTF-8.  The function returns -1 on error or 0 on success.


Tcl                                   8.1                        Tcl_GetCwd(3)