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      1 /*
      2  * Copyright (C) 2016 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 public class StringIndexOfBenchmark {
     18     public static final String string36 = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";  // length = 36
     19 
     20     public void timeIndexOf0(int count) {
     21         final char c = '0';
     22         String s = string36;
     23         for (int i = 0; i < count; ++i) {
     24             $noinline$indexOf(s, c);
     25         }
     26     }
     27 
     28     public void timeIndexOf1(int count) {
     29         final char c = '1';
     30         String s = string36;
     31         for (int i = 0; i < count; ++i) {
     32             $noinline$indexOf(s, c);
     33         }
     34     }
     35 
     36     public void timeIndexOf2(int count) {
     37         final char c = '2';
     38         String s = string36;
     39         for (int i = 0; i < count; ++i) {
     40             $noinline$indexOf(s, c);
     41         }
     42     }
     43 
     44     public void timeIndexOf3(int count) {
     45         final char c = '3';
     46         String s = string36;
     47         for (int i = 0; i < count; ++i) {
     48             $noinline$indexOf(s, c);
     49         }
     50     }
     51 
     52     public void timeIndexOf4(int count) {
     53         final char c = '4';
     54         String s = string36;
     55         for (int i = 0; i < count; ++i) {
     56             $noinline$indexOf(s, c);
     57         }
     58     }
     59 
     60     public void timeIndexOf7(int count) {
     61         final char c = '7';
     62         String s = string36;
     63         for (int i = 0; i < count; ++i) {
     64             $noinline$indexOf(s, c);
     65         }
     66     }
     67 
     68     public void timeIndexOf8(int count) {
     69         final char c = '8';
     70         String s = string36;
     71         for (int i = 0; i < count; ++i) {
     72             $noinline$indexOf(s, c);
     73         }
     74     }
     75 
     76     public void timeIndexOfF(int count) {
     77         final char c = 'F';
     78         String s = string36;
     79         for (int i = 0; i < count; ++i) {
     80             $noinline$indexOf(s, c);
     81         }
     82     }
     83 
     84     public void timeIndexOfG(int count) {
     85         final char c = 'G';
     86         String s = string36;
     87         for (int i = 0; i < count; ++i) {
     88             $noinline$indexOf(s, c);
     89         }
     90     }
     91 
     92     public void timeIndexOfV(int count) {
     93         final char c = 'V';
     94         String s = string36;
     95         for (int i = 0; i < count; ++i) {
     96             $noinline$indexOf(s, c);
     97         }
     98     }
     99 
    100     public void timeIndexOfW(int count) {
    101         final char c = 'W';
    102         String s = string36;
    103         for (int i = 0; i < count; ++i) {
    104             $noinline$indexOf(s, c);
    105         }
    106     }
    107 
    108     public void timeIndexOf_(int count) {
    109         final char c = '_';
    110         String s = string36;
    111         for (int i = 0; i < count; ++i) {
    112             $noinline$indexOf(s, c);
    113         }
    114     }
    115 
    116     static int $noinline$indexOf(String s, char c) {
    117         if (doThrow) { throw new Error(); }
    118         return s.indexOf(c);
    119     }
    120 
    121     public static boolean doThrow = false;
    122 }
    123