shr               213 lib/mktime.c     int a4 = shr (year1, 2) + shr (TM_YEAR_BASE, 2) - ! (year1 & 3);
shr               214 lib/mktime.c     int b4 = shr (year0, 2) + shr (TM_YEAR_BASE, 2) - ! (year0 & 3);
shr               217 lib/mktime.c     int a400 = shr (a100, 2);
shr               218 lib/mktime.c     int b400 = shr (b100, 2);
shr               235 lib/mktime.c     return shr (a, 1) + shr (b, 1) + ((a | b) & 1);