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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "lang_id/common/math/fastexp.h"
     18 
     19 namespace libtextclassifier3 {
     20 namespace mobile {
     21 
     22 const int FastMathClass::kBits;
     23 const int FastMathClass::kMask1;
     24 const int FastMathClass::kMask2;
     25 constexpr float FastMathClass::kLogBase2OfE;
     26 
     27 FastMathClass FastMathInstance;
     28 
     29 // Data taken from util/math/fastmath.cc
     30 const FastMathClass::Table FastMathClass::cache_ = {
     31     {0, 45549, 91345, 137391, 183686, 230233, 277032, 324086, 371395, 418961,
     32      466785, 514869, 563214, 611822, 660693, 709830, 759233, 808905, 858847,
     33      909060, 959545, 1010305, 1061340, 1112652, 1164243, 1216114, 1268267,
     34      1320703, 1373423, 1426430, 1479725, 1533309, 1587184, 1641351, 1695813,
     35      1750570, 1805625, 1860979, 1916633, 1972590, 2028850, 2085416, 2142289,
     36      2199470, 2256963, 2314767, 2372885, 2431319, 2490070, 2549140, 2608531,
     37      2668245, 2728282, 2788646, 2849337, 2910358, 2971710, 3033396, 3095416,
     38      3157773, 3220469, 3283505, 3346884, 3410606, 3474675, 3539091, 3603857,
     39      3668975, 3734447, 3800274, 3866458, 3933002, 3999907, 4067176, 4134809,
     40      4202810, 4271180, 4339922, 4409036, 4478526, 4548394, 4618640, 4689268,
     41      4760280, 4831677, 4903462, 4975636, 5048203, 5121164, 5194520, 5268275,
     42      5342431, 5416989, 5491952, 5567322, 5643101, 5719292, 5795897, 5872917,
     43      5950356, 6028215, 6106497, 6185204, 6264338, 6343902, 6423898, 6504329,
     44      6585196, 6666502, 6748250, 6830442, 6913080, 6996166, 7079704, 7163696,
     45      7248143, 7333049, 7418416, 7504247, 7590543, 7677309, 7764545, 7852255,
     46      7940441, 8029106, 8118253, 8207884, 8298001}
     47 };
     48 
     49 }  // namespace mobile
     50 }  // namespace nlp_saft
     51