From f154da9e12608589e8d5f0508f908a0c3e88a1bb Mon Sep 17 00:00:00 2001
From: Tianon Gravi <admwiggin@gmail.com>
Date: Thu, 15 Jan 2015 11:54:00 -0700
Subject: Imported Upstream version 1.4

---
 src/os/error_windows.go | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/os/error_windows.go

(limited to 'src/os/error_windows.go')

diff --git a/src/os/error_windows.go b/src/os/error_windows.go
new file mode 100644
index 000000000..83db6c078
--- /dev/null
+++ b/src/os/error_windows.go
@@ -0,0 +1,45 @@
+// Copyright 2012 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.
+
+package os
+
+import "syscall"
+
+func isExist(err error) bool {
+	switch pe := err.(type) {
+	case nil:
+		return false
+	case *PathError:
+		err = pe.Err
+	case *LinkError:
+		err = pe.Err
+	}
+	return err == syscall.ERROR_ALREADY_EXISTS ||
+		err == syscall.ERROR_FILE_EXISTS || err == ErrExist
+}
+
+func isNotExist(err error) bool {
+	switch pe := err.(type) {
+	case nil:
+		return false
+	case *PathError:
+		err = pe.Err
+	case *LinkError:
+		err = pe.Err
+	}
+	return err == syscall.ERROR_FILE_NOT_FOUND ||
+		err == syscall.ERROR_PATH_NOT_FOUND || err == ErrNotExist
+}
+
+func isPermission(err error) bool {
+	switch pe := err.(type) {
+	case nil:
+		return false
+	case *PathError:
+		err = pe.Err
+	case *LinkError:
+		err = pe.Err
+	}
+	return err == syscall.ERROR_ACCESS_DENIED || err == ErrPermission
+}
-- 
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