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Side by Side Diff: third_party/WebKit/Source/wtf/dtoa/cached-powers.h

Issue 1611343002: wtf reformat test Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: pydent Created 4 years, 11 months ago
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1 // Copyright 2010 the V8 project authors. All rights reserved. 1 // Copyright 2010 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
(...skipping 16 matching lines...) Expand all
27 27
28 #ifndef DOUBLE_CONVERSION_CACHED_POWERS_H_ 28 #ifndef DOUBLE_CONVERSION_CACHED_POWERS_H_
29 #define DOUBLE_CONVERSION_CACHED_POWERS_H_ 29 #define DOUBLE_CONVERSION_CACHED_POWERS_H_
30 30
31 #include "diy-fp.h" 31 #include "diy-fp.h"
32 32
33 namespace WTF { 33 namespace WTF {
34 34
35 namespace double_conversion { 35 namespace double_conversion {
36 36
37 class PowersOfTenCache { 37 class PowersOfTenCache {
38 public: 38 public:
39 // Not all powers of ten are cached. The decimal exponent of two neighboring
40 // cached numbers will differ by kDecimalExponentDistance.
41 static const int kDecimalExponentDistance;
39 42
40 // Not all powers of ten are cached. The decimal exponent of two neighbo ring 43 static const int kMinDecimalExponent;
41 // cached numbers will differ by kDecimalExponentDistance. 44 static const int kMaxDecimalExponent;
42 static const int kDecimalExponentDistance;
43 45
44 static const int kMinDecimalExponent; 46 // Returns a cached power-of-ten with a binary exponent in the range
45 static const int kMaxDecimalExponent; 47 // [min_exponent; max_exponent] (boundaries included).
48 static void GetCachedPowerForBinaryExponentRange(int min_exponent,
49 int max_exponent,
50 DiyFp* power,
51 int* decimal_exponent);
46 52
47 // Returns a cached power-of-ten with a binary exponent in the range 53 // Returns a cached power of ten x ~= 10^k such that
48 // [min_exponent; max_exponent] (boundaries included). 54 // k <= decimal_exponent < k + kCachedPowersDecimalDistance.
49 static void GetCachedPowerForBinaryExponentRange(int min_exponent, 55 // The given decimal_exponent must satisfy
50 int max_exponent, 56 // kMinDecimalExponent <= requested_exponent, and
51 DiyFp* power, 57 // requested_exponent < kMaxDecimalExponent + kDecimalExponentDistance.
52 int* decimal_exponent); 58 static void GetCachedPowerForDecimalExponent(int requested_exponent,
53 59 DiyFp* power,
54 // Returns a cached power of ten x ~= 10^k such that 60 int* found_exponent);
55 // k <= decimal_exponent < k + kCachedPowersDecimalDistance. 61 };
56 // The given decimal_exponent must satisfy
57 // kMinDecimalExponent <= requested_exponent, and
58 // requested_exponent < kMaxDecimalExponent + kDecimalExponentDistance .
59 static void GetCachedPowerForDecimalExponent(int requested_exponent,
60 DiyFp* power,
61 int* found_exponent);
62 };
63 } // namespace double_conversion 62 } // namespace double_conversion
64 63
65 } // namespace WTF 64 } // namespace WTF
66 65
67 #endif // DOUBLE_CONVERSION_CACHED_POWERS_H_ 66 #endif // DOUBLE_CONVERSION_CACHED_POWERS_H_
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