variadic max and inrange functions

playground/variadic.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"fmt"
+	"math"
+)
+
+func maximum(numbers ...float64) float64 {
+	max := math.Inf(-1)
+	for _, number := range numbers {
+		if number > max {
+			max = number
+		}
+	}
+	return max
+}
+
+func inRange(min float64, max float64, numbers ...float64) []float64 {
+	var result []float64
+	for _, number := range numbers {
+		if number >= min && number <= max {
+			result = append(result, number)
+		}
+	}
+	return result
+}
+
+func variadic() {
+	fmt.Println(maximum(71.8, 56.2, 89.5))
+	fmt.Println(maximum(90.7, 89.7, 98.5, 92.3))
+	fmt.Println(inRange(1, 100, -12.5, 3.2, 0, 50, 103.5))
+	fmt.Println(inRange(-10, 10, 4.1, 12, -12, -5.2))
+}