Defined in 2 files as a macro:

• EXTERNAL_HEADERS/Availability.h, line 299 (as a macro)
• EXTERNAL_HEADERS/Availability.h, line 310 (as a macro)

Referenced in 3 files:

• EXTERNAL_HEADERS/Availability.h, line 309
• libsyscall/mach/mach/mach.h
  • line 96
  • line 99
  • line 102
  • line 105
  • line 113
  • line 121
• osfmk/mach/message.h
  • line 1465
  • line 1487
  • line 1500
  • line 1512
  • line 1558