mirror of
https://github.com/golang/go
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48 lines
987 B
Go
48 lines
987 B
Go
// Copyright 2009 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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type ByteSize float64
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const (
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_ = iota // ignore first value by assigning to blank identifier
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KB ByteSize = 1 << (10 * iota)
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MB
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GB
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TB
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PB
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EB
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ZB
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YB
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)
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func (b ByteSize) String() string {
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switch {
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case b >= YB:
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return fmt.Sprintf("%.2fYB", float64(b/YB))
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case b >= ZB:
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return fmt.Sprintf("%.2fZB", float64(b/ZB))
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case b >= EB:
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return fmt.Sprintf("%.2fEB", float64(b/EB))
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case b >= PB:
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return fmt.Sprintf("%.2fPB", float64(b/PB))
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case b >= TB:
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return fmt.Sprintf("%.2fTB", float64(b/TB))
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case b >= GB:
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return fmt.Sprintf("%.2fGB", float64(b/GB))
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case b >= MB:
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return fmt.Sprintf("%.2fMB", float64(b/MB))
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case b >= KB:
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return fmt.Sprintf("%.2fKB", float64(b/KB))
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}
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return fmt.Sprintf("%.2fB", float64(b))
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}
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func main() {
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fmt.Println(YB, ByteSize(1e13))
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}
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