Compute max of two ints/floats

Integers

There is no built-in max or min function for integers, but it’s simple to write your own.

// Max returns the larger of x or y.
func Max(x, y int64) int64 {
	if x < y {
		return y
	}
	return x
}

// Min returns the smaller of x or y.
func Min(x, y int64) int64 {
	if x > y {
		return y
	}
	return x
}

Floats

For floats, use math.Max and math.Min.

// Max returns the larger of x or y. 
func Max(x, y float64) float64

// Min returns the smaller of x or y.
func Min(x, y float64) float64

Special cases:

Max(x, +Inf) = Max(+Inf, x) = +Inf
Max(x, NaN) = Max(NaN, x) = NaN
Max(+0, ±0) = Max(±0, +0) = +0
Max(-0, -0) = -0

Min(x, -Inf) = Min(-Inf, x) = -Inf
Min(x, NaN) = Min(NaN, x) = NaN
Min(-0, ±0) = Min(±0, -0) = -0

More code examples

Go blueprints: code for com­mon tasks is a collection of handy code examples.

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