Function split_time

python/pyarrow/src/arrow/python/datetime.cc:224–233

Splitting time quantities, for example splitting total seconds into minutes and remaining seconds. After we run int64_t remaining = split_time(total, quotient, &next) we have total = next * quotient + remaining. Handles negative values by propagating them: If total is negative, next will be negative and remaining will always be non-negative.

// them: If total is negative, next will be negative and remaining will
// always be non-negative.
static inline int64_t split_time(int64_t total, int64_t quotient, int64_t* next) {
  int64_t r = total % quotient;
  if (r < 0) {
    *next = total / quotient - 1;
    return r + quotient;
  } else {
    *next = total / quotient;
    return r;
  }
}

static inline Status PyTime_convert_int(int64_t val, const TimeUnit::type unit,
                                        int64_t* hour, int64_t* minute, int64_t* second,