From 9620206ee8c506436404e8f48eaab2bd99ece412 Mon Sep 17 00:00:00 2001
From: Rnhmjoj <micheleguerinirocco@me.com>
Date: Sat, 1 Mar 2014 16:48:45 +0100
Subject: [PATCH] Added Min, Max and improved Bool

---
 py/bool.go |  9 ++----
 py/misc.go | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 test.go    |  4 ++-
 3 files changed, 90 insertions(+), 9 deletions(-)

diff --git a/py/bool.go b/py/bool.go
index 0661994..c1f6caa 100644
--- a/py/bool.go
+++ b/py/bool.go
@@ -9,11 +9,10 @@ func Bool(x interface{}) bool {
 	}
 	vx := reflect.ValueOf(x)
 	switch vx.Kind() {
-		case reflect.Bool: {
+		case reflect.Bool:
 			if vx.Bool() {
 				return true
 			}
-		}
 		case reflect.Int, reflect.Int8,
 			 reflect.Int16, reflect.Int32,
 			 reflect.Int64:
@@ -30,12 +29,8 @@ func Bool(x interface{}) bool {
 			if vx.Float() == 0.0 {
 				return false
 			}
-		case reflect.String:
-			if vx.String() == "" {
-				return false
-			}
 		case reflect.Array, reflect.Slice,
-			 reflect.Map:
+			 reflect.Map, reflect.String:
 			if vx.Len() == 0 {
 				return false
 			}
diff --git a/py/misc.go b/py/misc.go
index 83c9a31..ee8165a 100644
--- a/py/misc.go
+++ b/py/misc.go
@@ -64,4 +64,88 @@ func Open(args...string) *os.File{
 	return file
 }
 
-//TODO min, max
+
+func less(a, b interface{}) bool {
+	va := reflect.ValueOf(a)
+	vb := reflect.ValueOf(b)
+	switch va.Kind() {
+		case reflect.Bool:
+			if va.Bool() == false && vb.Bool() == true{
+				return true
+			}
+		case reflect.Int, reflect.Int8,
+			reflect.Int16, reflect.Int32,
+			reflect.Int64:
+			if va.Int() < vb.Int() {
+				return true
+			}
+		case reflect.Uint, reflect.Uint8,
+			reflect.Uint16, reflect.Uint32,
+			reflect.Uint64:
+			if va.Uint() < vb.Uint() {
+				return true
+			}
+		case reflect.Float32, reflect.Float64:
+			if va.Float() < vb.Float() {
+				return true
+			}
+		case reflect.Array, reflect.Slice,
+			reflect.Map, reflect.String:
+			if va.Len() < vb.Len() {
+				return true
+			}
+		default:
+			panic("Unsupported type")
+	}
+	return false
+}
+
+
+func min(iter interface{}) interface{} {
+	viter := reflect.ValueOf(iter)
+	min := viter.Index(0).Interface()
+	for i := 0; i < viter.Len(); i++ {
+		if less(viter.Index(i).Interface(), min){
+			min = viter.Index(i).Interface()
+		}
+	}
+	return min
+}
+
+
+func max(iter interface{}) interface{} {
+	viter := reflect.ValueOf(iter)
+	max := viter.Index(0).Interface()
+	for i := 0; i < viter.Len(); i++ {
+		if less(max, viter.Index(i).Interface()){
+			max = viter.Index(i).Interface()
+		}
+	}
+	return max
+}
+
+
+func Min(args... interface{}) interface{}{
+	x := len(args)
+	switch {
+		case x == 1:
+			return min(args[0])
+		case x > 1:
+			return min(args)
+		default:
+			panic("Min accepts 1 or more arguments")
+	}
+}
+
+
+func Max(args... interface{}) interface{}{
+	x := len(args)
+	switch {
+		case x == 1:
+			return max(args[0])
+		case x > 1:
+			return max(args)
+		default:
+			panic("Min accepts 1 or more arguments")
+	}
+}
diff --git a/test.go b/test.go
index a4bd704..0677e7e 100644
--- a/test.go
+++ b/test.go
@@ -16,9 +16,11 @@ func main(){
 		Abs(-19.3),
 		Pow(2,16),
 		Type(true),
-		Open("ciao2.txt", "a"),
+		Open("test.txt", "a+"),
 		Any([]interface{}{0, 1, []int{}, ""}),
 		All([]interface{}{true,"",1}),
+		Min([]float64{3.14159,23.14069,2.71828}),
+		Max(-3,24,1,-23,31),
 		Input("Scrivi qualcosa: "),
 	}
 	fmt.Println(test)