circuitpython/py/intdivmod.c

25 lines
665 B
C

#include "mpconfig.h"
machine_int_t python_modulo(machine_int_t dividend, machine_int_t divisor) {
machine_int_t lsign = (dividend >= 0) ? 1 :-1;
machine_int_t rsign = (divisor >= 0) ? 1 :-1;
dividend %= divisor;
if (lsign != rsign) {
dividend += divisor;
}
return dividend;
}
machine_int_t python_floor_divide(machine_int_t num, machine_int_t denom) {
machine_int_t lsign = num > 0 ? 1 : -1;
machine_int_t rsign = denom > 0 ? 1 : -1;
if (lsign == -1) {num *= -1;}
if (rsign == -1) {denom *= -1;}
if (lsign != rsign){
return - ( num + denom - 1) / denom;
} else {
return num / denom;
}
}