Defined in 4 files as a macro:

• contrib/ipfilter/sys/tree.h, line 299 (as a macro)
• contrib/libevent/WIN32-Code/tree.h, line 296 (as a macro)
• crypto/openssh/openbsd-compat/sys-tree.h, line 303 (as a macro)
• sys/sys/tree.h, line 312 (as a macro)

Referenced in 5 files:

• contrib/bsnmp/snmp_mibII/mibII_route.c, line 50
• contrib/elftoolchain/addr2line/addr2line.c, line 92
• sys/kern/subr_epoch.c, line 174
• sys/vm/vm_phys.c, line 93
• usr.bin/unifdef/unifdef.c, line 179