osx man page for uuid_is_null

UUID_IS_NULL(3) 					     Library Functions Manual						   UUID_IS_NULL(3)

NAME
       uuid_is_null - compare the value of the UUID to the NULL value

SYNOPSIS
       #include <uuid/uuid.h>

       int uuid_is_null(uuid_t uu);

DESCRIPTION
       The uuid_is_null function compares the value of the supplied UUID variable uu to the NULL value.  If the value is equal to the NULL UUID, 1
       is returned, otherwise 0 is returned.

AUTHOR
       Theodore Y. Ts'o

AVAILABILITY
       http://e2fsprogs.sourceforge.net/ <http://e2fsprogs.sourceforge.net/>

SEE ALSO
       uuid(3), uuid_clear(3), uuid_compare(3), uuid_copy(3), uuid_generate(3), uuid_parse(3), uuid_unparse(3)

1.36								    April 2004							   UUID_IS_NULL(3)