Defined in 1 files as a macro:

• bsd/netinet/in_var.h, line 445 (as a macro)

Referenced in 3 files:

• bsd/netinet/igmp.c, line 3128
• bsd/netinet/in_mcast.c
  • line 658
  • line 3417
• bsd/netinet/in_var.h, line 494