mirror of
https://github.com/golang/go
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370ff5ff96
Did a mix of tilde and non-tilde usage. Tilde notation is not quite fully functional, so no tests are currently trying to distinguish (fail/not fail) based on tilde usage. Change-Id: Ib50cec2fc0684f9d9f3561c889fd44c7a7af458c Reviewed-on: https://go-review.googlesource.com/c/go/+/324572 Trust: Dan Scales <danscales@google.com> Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Dan Scales <danscales@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
42 lines
888 B
Go
42 lines
888 B
Go
// run -gcflags=-G=3
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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)
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type Ordered interface {
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~int | ~int8 | ~int16 | ~int32 | ~int64 |
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~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr |
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~float32 | ~float64 |
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~string
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}
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func Smallest[T Ordered](s []T) T {
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r := s[0] // panics if slice is empty
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for _, v := range s[1:] {
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if v < r {
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r = v
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}
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}
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return r
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}
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func main() {
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vec1 := []float64{5.3, 1.2, 32.8}
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vec2 := []string{"abc", "def", "aaa"}
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want1 := 1.2
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if got := Smallest(vec1); got != want1 {
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panic(fmt.Sprintf("got %d, want %d", got, want1))
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}
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want2 := "aaa"
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if got := Smallest(vec2); got != want2 {
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panic(fmt.Sprintf("got %d, want %d", got, want2))
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}
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}
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