The Tor Browser: ipc/chromium/src/base/rand_util

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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.

     5 #include "base/rand_util.h"

     7 #include <stdlib.h>

     9 #include "base/basictypes.h"

    10 #include "base/logging.h"

    12 namespace {

    14 uint32_t RandUint32() {

    15   uint32_t number;

    16   CHECK(rand_s(&number) == 0);

    17   return number;

    18 }

    20 }  // namespace

    22 namespace base {

    24 uint64_t RandUint64() {

    25   uint32_t first_half = RandUint32();

    26   uint32_t second_half = RandUint32();

    27   return (static_cast<uint64_t>(first_half) << 32) + second_half;

    28 }

    30 }  // namespace base

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