2 .\" Title: uuid_is_null
3 .\" Author: [see the "AUTHOR(S)" section]
4 .\" Generator: Asciidoctor 2.0.15
6 .\" Manual: Programmer's Manual
7 .\" Source: util-linux 2.37.4
10 .TH "UUID_IS_NULL" "3" "2022-01-06" "util\-linux 2.37.4" "Programmer\(aqs Manual"
28 . LINKSTYLE blue R < >
31 uuid_is_null \- compare the value of the UUID to the NULL value
34 \fB#include <uuid.h>\fP
36 \fBint uuid_is_null(uuid_t \fIuu\fP);\fP
39 The \fBuuid_is_null\fP() function compares the value of the supplied UUID variable \fIuu\fP to the NULL value. If the value is equal to the NULL UUID, 1 is returned, otherwise 0 is returned.
47 \fBuuid_compare\fP(3),
49 \fBuuid_generate\fP(3),
55 For bug reports, use the issue tracker at \c
56 .URL "https://github.com/karelzak/util\-linux/issues" "" "."
59 The \fBlibuuid\fP library is part of the util\-linux package since version 2.15.1. It can be downloaded from \c
60 .URL "https://www.kernel.org/pub/linux/utils/util\-linux/" "Linux Kernel Archive" "."