NDIV              148 ext/date/date_core.c #define NDIV(x,y) (-(-((x)+1)/(y))-1)
NDIV             7039 process.c      #define NDIV(x,y) (-(-((x)+1)/(y))-1)
NDIV               39 time.c         #define NDIV(x,y) (-(-((x)+1)/(y))-1)