Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/dtoa/cached-powers.h

-// 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 WTF {
-
-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 int kDecimalExponentDistance;
-        
-        static int kMinDecimalExponent;
-        static 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);
-    };
-    
-    // Initializes the table of cached powers used by the dtoa algorithm.
-    // This needs to be called when JSC is being initialized.
-    void initialize();
-    
-}  // namespace double_conversion
-
-} // namespace WTF
-
-#endif  // DOUBLE_CONVERSION_CACHED_POWERS_H_