Initial commit: Go 1.23 release state

test/typeparam/smallest.go

@@ -0,0 +1,42 @@
+// run
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"fmt"
+)
+
+type Ordered interface {
+	~int | ~int8 | ~int16 | ~int32 | ~int64 |
+		~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr |
+		~float32 | ~float64 |
+		~string
+}
+
+func Smallest[T Ordered](s []T) T {
+	r := s[0] // panics if slice is empty
+	for _, v := range s[1:] {
+		if v < r {
+			r = v
+		}
+	}
+	return r
+}
+
+func main() {
+	vec1 := []float64{5.3, 1.2, 32.8}
+	vec2 := []string{"abc", "def", "aaa"}
+
+	want1 := 1.2
+	if got := Smallest(vec1); got != want1 {
+		panic(fmt.Sprintf("got %d, want %d", got, want1))
+	}
+	want2 := "aaa"
+	if got := Smallest(vec2); got != want2 {
+		panic(fmt.Sprintf("got %d, want %d", got, want2))
+	}
+}