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Side by Side Diff: src/IceRNG.h

Issue 656123003: Subzero: Class definition cleanup. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Changes for Karl Created 6 years, 2 months ago
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1 //===- subzero/src/IceRNG.h - Random number generator -----------*- C++ -*-===// 1 //===- subzero/src/IceRNG.h - Random number generator -----------*- C++ -*-===//
2 // 2 //
3 // The Subzero Code Generator 3 // The Subzero Code Generator
4 // 4 //
5 // This file is distributed under the University of Illinois Open Source 5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details. 6 // License. See LICENSE.TXT for details.
7 // 7 //
8 //===----------------------------------------------------------------------===// 8 //===----------------------------------------------------------------------===//
9 // 9 //
10 // This file declares a random number generator. 10 // This file declares a random number generator.
11 // 11 //
12 //===----------------------------------------------------------------------===// 12 //===----------------------------------------------------------------------===//
13 13
14 #ifndef SUBZERO_SRC_ICERNG_H 14 #ifndef SUBZERO_SRC_ICERNG_H
15 #define SUBZERO_SRC_ICERNG_H 15 #define SUBZERO_SRC_ICERNG_H
16 16
17 #include <cstdint> 17 #include <cstdint>
18 18
19 #include "llvm/ADT/StringRef.h" 19 #include "llvm/ADT/StringRef.h"
20 #include "llvm/Support/Compiler.h" 20 #include "llvm/Support/Compiler.h"
21 21
22 namespace Ice { 22 namespace Ice {
23 23
24 class RandomNumberGenerator { 24 class RandomNumberGenerator {
25 RandomNumberGenerator(const RandomNumberGenerator &) = delete;
26 RandomNumberGenerator &operator=(const RandomNumberGenerator &) = delete;
27
25 public: 28 public:
26 RandomNumberGenerator(llvm::StringRef Salt); 29 RandomNumberGenerator(llvm::StringRef Salt);
27 uint64_t next(uint64_t Max); 30 uint64_t next(uint64_t Max);
28 31
29 private: 32 private:
30 RandomNumberGenerator(const RandomNumberGenerator &) = delete;
31 RandomNumberGenerator &operator=(const RandomNumberGenerator &) = delete;
32
33 uint64_t State; 33 uint64_t State;
34 }; 34 };
35 35
36 // This class adds additional random number generator utilities. The 36 // This class adds additional random number generator utilities. The
37 // reason for the wrapper class is that we want to keep the 37 // reason for the wrapper class is that we want to keep the
38 // RandomNumberGenerator interface identical to LLVM's. 38 // RandomNumberGenerator interface identical to LLVM's.
39 class RandomNumberGeneratorWrapper { 39 class RandomNumberGeneratorWrapper {
40 RandomNumberGeneratorWrapper(const RandomNumberGeneratorWrapper &) = delete;
41 RandomNumberGeneratorWrapper &
42 operator=(const RandomNumberGeneratorWrapper &) = delete;
43
40 public: 44 public:
41 uint64_t next(uint64_t Max) { return RNG.next(Max); } 45 uint64_t next(uint64_t Max) { return RNG.next(Max); }
42 bool getTrueWithProbability(float Probability); 46 bool getTrueWithProbability(float Probability);
43 RandomNumberGeneratorWrapper(RandomNumberGenerator &RNG) : RNG(RNG) {} 47 RandomNumberGeneratorWrapper(RandomNumberGenerator &RNG) : RNG(RNG) {}
44 48
45 private: 49 private:
46 RandomNumberGeneratorWrapper(const RandomNumberGeneratorWrapper &) = delete;
47 RandomNumberGeneratorWrapper &
48 operator=(const RandomNumberGeneratorWrapper &) = delete;
49
50 RandomNumberGenerator &RNG; 50 RandomNumberGenerator &RNG;
51 }; 51 };
52 52
53 } // end of namespace Ice 53 } // end of namespace Ice
54 54
55 #endif // SUBZERO_SRC_ICERNG_H 55 #endif // SUBZERO_SRC_ICERNG_H
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