int64.go

package gomath

// MaxInt64 takes in two or more integers and returns
// the maximum of them
func MaxInt64(a int64, rem ...int64) int64 {
	res := a
	for _, v := range rem {
		if v > res {
			res = v
		}
	}
	return res
}

// MinInt64 takes in two or more integers and returns
// the maximum of them
func MinInt64(a int64, rem ...int64) int64 {
	res := a
	for _, v := range rem {
		if v < res {
			res = v
		}
	}
	return res
}

// AbsInt64 takes an integer and returns its absolute
// value
func AbsInt64(a int64) int64 {
	return MaxInt64(a, -a)
}

// ClampInt64 will clamp a given value between a low and
// high value inclusively.
func ClampInt64(low, high, val int64) (result int64) {
	if val < low {
		result = low
	} else if val > high {
		result = high
	} else {
		result = val
	}
	return
}

// ScaleInt64 will scale a number from the old range
// to the new range
func ScaleInt64(low, high, oldLow, oldHigh, value int64) int64 {
	return low + (high-low)*((value-oldLow)/(oldHigh-oldLow))
}