1
0
mirror of https://github.com/golang/go synced 2024-10-02 16:18:38 -06:00
go/src/os/str.go
Martin Möhrmann 79c4fad8c2 os: replace itod on posix with general itoa and fix possible infinite recursion
Remove use of itod on posix systems and replace with call to itoa.
Build and use same itoa function on all systems.
Fix infinite recursion in iota function for the case -1<<63.

Change-Id: I89d7e742383c5c4aeef8780501c78a3e1af87a6f
Reviewed-on: https://go-review.googlesource.com/2213
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-02 16:21:18 +00:00

34 lines
728 B
Go

// Copyright 2009 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.
// Simple converions to avoid depending on strconv.
package os
// Convert integer to decimal string
func itoa(val int) string {
if val < 0 {
return "-" + uitoa(uint(-val))
}
return uitoa(uint(val))
}
// Convert unsigned integer to decimal string
func uitoa(val uint) string {
if val == 0 { // avoid string allocation
return "0"
}
var buf [20]byte // big enough for 64bit value base 10
i := len(buf) - 1
for val >= 10 {
q := val / 10
buf[i] = byte('0' + val - q*10)
i--
val = q
}
// val < 10
buf[i] = byte('0' + val)
return string(buf[i:])
}