ref: d5fc608059dee5f65ddfdf3e230bb8d458ccf43f dir: /sys/src/ape/lib/ap/gen/div.c/
#include <stdlib.h> div_t div(int numer, int denom) { div_t ans; ans.quot=numer/denom; /* assumes division truncates */ ans.rem=numer-ans.quot*denom; return ans; }