Files
sdk/runtime/vm/random.h
T
Zachary Anderson 103881d01c Make header include guards great again
i.e. #ifndef VM_WHATEVER -> #ifndef RUNTIME_VM_WHATEVER

This lets us remove a hack from the PRESUBMIT.py script that existed
for reasons that are no longer valid, and sets us up to add some
presubmit checks for the GN build.

R=asiva@google.com, rmacnak@google.com

Review URL: https://codereview.chromium.org/2450713004 .
2016-10-26 00:26:03 -07:00

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// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_VM_RANDOM_H_
#define RUNTIME_VM_RANDOM_H_
#include "vm/globals.h"
#include "vm/allocation.h"
namespace dart {
class Random {
public:
Random();
// Seed must be non-zero.
explicit Random(uint64_t seed);
~Random();
uint32_t NextUInt32();
uint64_t NextUInt64() {
return (static_cast<uint64_t>(NextUInt32()) << 32) |
static_cast<uint64_t>(NextUInt32());
}
private:
void NextState();
void Initialize(uint64_t seed);
uint64_t _state;
DISALLOW_COPY_AND_ASSIGN(Random);
};
} // namespace dart
#endif // RUNTIME_VM_RANDOM_H_