1// Copyright 2019 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// Package xerrors implements functions to manipulate errors.
6//
7// This package is based on the Go 2 proposal for error values:
8//   https://golang.org/design/29934-error-values
9//
10// These functions were incorporated into the standard library's errors package
11// in Go 1.13:
12// - Is
13// - As
14// - Unwrap
15//
16// Also, Errorf's %w verb was incorporated into fmt.Errorf.
17//
18// Use this package to get equivalent behavior in all supported Go versions.
19//
20// No other features of this package were included in Go 1.13, and at present
21// there are no plans to include any of them.
22package xerrors // import "golang.org/x/xerrors"
23