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Tcl_GetCwd(3)		     Tcl Library Procedures		   Tcl_GetCwd(3)

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NAME
     Tcl_GetCwd, Tcl_Chdir - manipulate the current working directory

SYNOPSIS
     #include <tcl.h>

     char *
     Tcl_GetCwd(interp, bufferPtr)

     int
     Tcl_Chdir(dirName)

ARGUMENTS
     Tcl_Interp *interp (in)		  Interpreter  in which to report an er-
					  ror, 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 unini-
					  tialized or  free.   The  caller  must
					  eventually   call  Tcl_DStringFree  to
					  free up anything stored here.

     const char *dirName (in)		  File path in UTF-8 format.
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DESCRIPTION
     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  re-
     turned,  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  dirName.   The format of the passed in string must be UTF-8.
     The function returns -1 on error or 0 on success.

KEYWORDS
     pwd

Tcl				       8.1			   Tcl_GetCwd(3)

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