Defined in 4 files as a macro:
- external/bsd/ntp/dist/include/timepps-SCO.h, line 107 (as a macro)
- external/bsd/ntp/dist/include/timepps-Solaris.h, line 107 (as a macro)
- external/bsd/ntp/dist/include/timepps-SunOS.h, line 107 (as a macro)
- sys/sys/timepps.h, line 99 (as a macro)