A generic subtract function

Go-1.18-SubtractGeneric.go

func main(){
	var a int = 20
	var b int = 10

	var c float32 = 20
	var d float32 = 10.5

	result := Subtract(a, b)
	// Here we tell the function that the input is a float32 data type, so expect the output parameter to be float32
	resultfloat := Subtract[float32](c, d)
	// Will output 10
	fmt.Println("Result:", result)
	// Will output 9.5
	fmt.Println("Resultfloat:", resultfloat)
}

// Subtract will subtract the second value from the first
func Subtract[V int64 | int | float32](a, b V) V {
	return a - b
}