1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_QUIC_CONGESTION_CONTROL_CUBE_ROOT_H_ 6 #define NET_QUIC_CONGESTION_CONTROL_CUBE_ROOT_H_ 7 8 #include "base/basictypes.h" 9 #include "net/base/net_export.h" 10 11 namespace net { 12 13 class NET_EXPORT_PRIVATE CubeRoot { 14 public: 15 // Calculates the cube root using a table lookup followed by one Newton- 16 // Raphson iteration. 17 static uint32 Root(uint64 a); 18 19 private: 20 DISALLOW_COPY_AND_ASSIGN(CubeRoot); 21 }; 22 23 } // namespace net 24 #endif // NET_QUIC_CONGESTION_CONTROL_CUBE_ROOT_H_ 25
