| .\" Copyright 1999 Andreas Dilger (adilger@enel.ucalgary.ca) | 
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 | .\" Created  Wed Mar 10 17:42:12 1999, Andreas Dilger | 
 | .TH UUID_IS_NULL 3 "May 2009" "util-linux" "Libuuid API" | 
 | .SH NAME | 
 | uuid_is_null \- compare the value of the UUID to the NULL value | 
 | .SH SYNOPSIS | 
 | .nf | 
 | .B #include <uuid.h> | 
 | .sp | 
 | .BI "int uuid_is_null(uuid_t " uu ); | 
 | .fi | 
 | .SH DESCRIPTION | 
 | The | 
 | .B uuid_is_null | 
 | function compares the value of the supplied UUID variable | 
 | .I uu | 
 | to the NULL value.  If the value is equal to the NULL UUID, 1 is returned, | 
 | otherwise 0 is returned. | 
 | .SH AUTHOR | 
 | Theodore Y.\& Ts'o | 
 | .SH AVAILABILITY | 
 | .B libuuid | 
 | is part of the util-linux package since version 2.15.1 and is available from | 
 | ftp://ftp.kernel.org/pub/linux/utils/util-linux/. | 
 | .na | 
 | .SH "SEE ALSO" | 
 | .BR uuid (3), | 
 | .BR uuid_clear (3), | 
 | .BR uuid_compare (3), | 
 | .BR uuid_copy (3), | 
 | .BR uuid_generate (3), | 
 | .BR uuid_time (3), | 
 | .BR uuid_parse (3), | 
 | .BR uuid_unparse (3) | 
 | .ad |