mirror of
https://github.com/golang/go
synced 2024-11-07 11:46:17 -07:00
43 lines
817 B
Go
43 lines
817 B
Go
|
// run -gcflags=-G=3
|
||
|
|
|
||
|
|
// 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 {
|
||
|
|
type 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))
|
||
|
|
}
|
||
|
|
}
|