Index: runtime/third_party/double-conversion/src/cached-powers.h |
diff --git a/runtime/third_party/double-conversion/src/cached-powers.h b/runtime/third_party/double-conversion/src/cached-powers.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..61a50614cf10c730829467007be06c6e66a6d44e |
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+++ b/runtime/third_party/double-conversion/src/cached-powers.h |
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+// Copyright 2010 the V8 project authors. All rights reserved. |
+// Redistribution and use in source and binary forms, with or without |
+// modification, are permitted provided that the following conditions are |
+// met: |
+// |
+// * Redistributions of source code must retain the above copyright |
+// notice, this list of conditions and the following disclaimer. |
+// * Redistributions in binary form must reproduce the above |
+// copyright notice, this list of conditions and the following |
+// disclaimer in the documentation and/or other materials provided |
+// with the distribution. |
+// * Neither the name of Google Inc. nor the names of its |
+// contributors may be used to endorse or promote products derived |
+// from this software without specific prior written permission. |
+// |
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+ |
+#ifndef DOUBLE_CONVERSION_CACHED_POWERS_H_ |
+#define DOUBLE_CONVERSION_CACHED_POWERS_H_ |
+ |
+#include "diy-fp.h" |
+ |
+namespace double_conversion { |
+ |
+class PowersOfTenCache { |
+ public: |
+ |
+ // Not all powers of ten are cached. The decimal exponent of two neighboring |
+ // cached numbers will differ by kDecimalExponentDistance. |
+ static const int kDecimalExponentDistance; |
+ |
+ static const int kMinDecimalExponent; |
+ static const int kMaxDecimalExponent; |
+ |
+ // Returns a cached power-of-ten with a binary exponent in the range |
+ // [min_exponent; max_exponent] (boundaries included). |
+ static void GetCachedPowerForBinaryExponentRange(int min_exponent, |
+ int max_exponent, |
+ DiyFp* power, |
+ int* decimal_exponent); |
+ |
+ // Returns a cached power of ten x ~= 10^k such that |
+ // k <= decimal_exponent < k + kCachedPowersDecimalDistance. |
+ // The given decimal_exponent must satisfy |
+ // kMinDecimalExponent <= requested_exponent, and |
+ // requested_exponent < kMaxDecimalExponent + kDecimalExponentDistance. |
+ static void GetCachedPowerForDecimalExponent(int requested_exponent, |
+ DiyFp* power, |
+ int* found_exponent); |
+}; |
+ |
+} // namespace double_conversion |
+ |
+#endif // DOUBLE_CONVERSION_CACHED_POWERS_H_ |