math: Round returns an int in a float64

[Fale]

As per documentation, the math.Round "returns the nearest integer" [1]. Why does it return it in a float? [2] Wouldn't make more sense to return it in an integer typed variable?

[1]

go/src/math/floor.go

Line 58 in 6104939

// Round returns the nearest integer, rounding half away from zero.

[2]

go/src/math/floor.go

Line 64 in 6104939

func Round(x float64) float64 {

[dominikh]

The output of math.Round is most likely to be used with other functions in the math package, which all operate on floats. math.Floor exists for the same reason. It wouldn't be necessary if it returned int.

In the future, questions like these are best asked on one of the forums, see https://github.com/golang/go/wiki/Questions for more information.