mirror of
https://github.com/golang/go
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31 lines
586 B
Go
31 lines
586 B
Go
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// run
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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 "fmt"
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func f(x uint64) uint64 {
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s := "\x04"
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c := s[0]
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return x - x<<c<<4
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}
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func g(x uint32) uint32 {
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s := "\x04"
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c := s[0]
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return x - x<<c<<4
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}
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func main() {
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if want, got := uint64(0xffffffffffffff01), f(1); want != got {
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panic(fmt.Sprintf("want %x got %x", want, got))
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}
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if want, got := uint32(0xffffff01), g(1); want != got {
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panic(fmt.Sprintf("want %x got %x", want, got))
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}
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}
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