year1 205 maint/gnulib/lib/mktime.c ydhms_diff (long_int year1, long_int yday1, int hour1, int min1, int sec1, year1 212 maint/gnulib/lib/mktime.c int a4 = shr (year1, 2) + shr (TM_YEAR_BASE, 2) - ! (year1 & 3); year1 221 maint/gnulib/lib/mktime.c long_int years = year1 - year0;