github.com/Andyfoo/golang/x/sys@v0.0.0-20190901054642-57c1bf301704/plan9/str.go (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build plan9
     6  
     7  package plan9
     8  
     9  func itoa(val int) string { // do it here rather than with fmt to avoid dependency
    10  	if val < 0 {
    11  		return "-" + itoa(-val)
    12  	}
    13  	var buf [32]byte // big enough for int64
    14  	i := len(buf) - 1
    15  	for val >= 10 {
    16  		buf[i] = byte(val%10 + '0')
    17  		i--
    18  		val /= 10
    19  	}
    20  	buf[i] = byte(val + '0')
    21  	return string(buf[i:])
    22  }