bench-forgejo/vendor/github.com/google/uuid/version4.go
6543 d1353e1f7c
Vendor Update (#14496)
* update code.gitea.io/sdk/gitea v0.13.1 -> v0.13.2

* update github.com/go-swagger/go-swagger v0.25.0 -> v0.26.0

* update github.com/google/uuid v1.1.2 -> v1.2.0

* update github.com/klauspost/compress v1.11.3 -> v1.11.7

* update github.com/lib/pq 083382b7e6fc -> v1.9.0

* update github.com/markbates/goth v1.65.0 -> v1.66.1

* update github.com/mattn/go-sqlite3 v1.14.4 -> v1.14.6

* update github.com/mgechev/revive 246eac737dc7 -> v1.0.3

* update github.com/minio/minio-go/v7 v7.0.6 -> v7.0.7

* update github.com/niklasfasching/go-org v1.3.2 -> v1.4.0

* update github.com/olivere/elastic/v7 v7.0.21 -> v7.0.22

* update github.com/pquerna/otp v1.2.0 -> v1.3.0

* update github.com/xanzy/go-gitlab v0.39.0 -> v0.42.0

* update github.com/yuin/goldmark v1.2.1 -> v1.3.1
2021-01-28 17:56:38 +01:00

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// Copyright 2016 Google Inc. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package uuid
import "io"
// New creates a new random UUID or panics. New is equivalent to
// the expression
//
// uuid.Must(uuid.NewRandom())
func New() UUID {
return Must(NewRandom())
}
// NewString creates a new random UUID and returns it as a string or panics.
// NewString is equivalent to the expression
//
// uuid.New().String()
func NewString() string {
return Must(NewRandom()).String()
}
// NewRandom returns a Random (Version 4) UUID.
//
// The strength of the UUIDs is based on the strength of the crypto/rand
// package.
//
// A note about uniqueness derived from the UUID Wikipedia entry:
//
// Randomly generated UUIDs have 122 random bits. One's annual risk of being
// hit by a meteorite is estimated to be one chance in 17 billion, that
// means the probability is about 0.00000000006 (6 × 1011),
// equivalent to the odds of creating a few tens of trillions of UUIDs in a
// year and having one duplicate.
func NewRandom() (UUID, error) {
return NewRandomFromReader(rander)
}
// NewRandomFromReader returns a UUID based on bytes read from a given io.Reader.
func NewRandomFromReader(r io.Reader) (UUID, error) {
var uuid UUID
_, err := io.ReadFull(r, uuid[:])
if err != nil {
return Nil, err
}
uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
return uuid, nil
}