• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // Copyright (c) 2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "base/rand_util.h"
6 
7 #include <stdlib.h>
8 
9 #include "base/basictypes.h"
10 #include "base/logging.h"
11 
12 namespace {
13 
RandUint32()14 uint32 RandUint32() {
15   uint32 number;
16   CHECK_EQ(rand_s(&number), 0);
17   return number;
18 }
19 
20 }  // namespace
21 
22 namespace base {
23 
RandUint64()24 uint64 RandUint64() {
25   uint32 first_half = RandUint32();
26   uint32 second_half = RandUint32();
27   return (static_cast<uint64>(first_half) << 32) + second_half;
28 }
29 
30 }  // namespace base
31