group_member \- test whether a process is in a group
.SH SYNOPSIS
.B #include <unistd.h>
-.sp
+.PP
.BI "int group_member(gid_t " gid );
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+.PP
.in -4n
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.in
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+.PP
.BR group_member ():
_GNU_SOURCE
.SH DESCRIPTION