NAME
	  clearenv - Clears the	process	environment

     LIBRARY
	  Standard C Library (libc.a)

     SYNOPSIS
	  #include <stdlib.h>
	  int clearenv ( void );

     DESCRIPTION
	  The clearenv() function clears the process environment.  No
	  environment variables	are defined immediately	after a	call
	  to clearenv().  The clearenv() function sets the value of
	  the external variable	environ	to NULL.

     NOTES
	  AES Support Level: Trial use

     RETURN VALUES
	  Upon successful completion, the clearenv() function returns
	  0 (zero).  Otherwise,	it returns -1.

	  If environ has been modified by anything other than the
	  putenv() , getenv() ,	or clearenv() functions, then
	  clearenv() will return an error and the process environment
	  will remain unchanged.

     RELATED INFORMATION
	  Functions: exec(2), getenv(3), putenv(3)