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Issue 7754022: Fix presubmit errors caused by updated depot tools (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years, 3 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
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85 return PlusCompare(a, b, c) == 0; 85 return PlusCompare(a, b, c) == 0;
86 } 86 }
87 // Returns a + b <= c 87 // Returns a + b <= c
88 static bool PlusLessEqual(const Bignum& a, const Bignum& b, const Bignum& c) { 88 static bool PlusLessEqual(const Bignum& a, const Bignum& b, const Bignum& c) {
89 return PlusCompare(a, b, c) <= 0; 89 return PlusCompare(a, b, c) <= 0;
90 } 90 }
91 // Returns a + b < c 91 // Returns a + b < c
92 static bool PlusLess(const Bignum& a, const Bignum& b, const Bignum& c) { 92 static bool PlusLess(const Bignum& a, const Bignum& b, const Bignum& c) {
93 return PlusCompare(a, b, c) < 0; 93 return PlusCompare(a, b, c) < 0;
94 } 94 }
95
95 private: 96 private:
96 typedef uint32_t Chunk; 97 typedef uint32_t Chunk;
97 typedef uint64_t DoubleChunk; 98 typedef uint64_t DoubleChunk;
98 99
99 static const int kChunkSize = sizeof(Chunk) * 8; 100 static const int kChunkSize = sizeof(Chunk) * 8;
100 static const int kDoubleChunkSize = sizeof(DoubleChunk) * 8; 101 static const int kDoubleChunkSize = sizeof(DoubleChunk) * 8;
101 // With bigit size of 28 we loose some bits, but a double still fits easily 102 // With bigit size of 28 we loose some bits, but a double still fits easily
102 // into two chunks, and more importantly we can use the Comba multiplication. 103 // into two chunks, and more importantly we can use the Comba multiplication.
103 static const int kBigitSize = 28; 104 static const int kBigitSize = 28;
104 static const Chunk kBigitMask = (1 << kBigitSize) - 1; 105 static const Chunk kBigitMask = (1 << kBigitSize) - 1;
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131 int used_digits_; 132 int used_digits_;
132 // The Bignum's value equals value(bigits_) * 2^(exponent_ * kBigitSize). 133 // The Bignum's value equals value(bigits_) * 2^(exponent_ * kBigitSize).
133 int exponent_; 134 int exponent_;
134 135
135 DISALLOW_COPY_AND_ASSIGN(Bignum); 136 DISALLOW_COPY_AND_ASSIGN(Bignum);
136 }; 137 };
137 138
138 } } // namespace v8::internal 139 } } // namespace v8::internal
139 140
140 #endif // V8_BIGNUM_H_ 141 #endif // V8_BIGNUM_H_
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