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annotate test/compiler/6942326/Test.java @ 15001:27c04ee36dcb

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author Lukas Stadler <lukas.stadler@oracle.com>
date Mon, 07 Apr 2014 11:32:04 +0200
parents 41d4973cf100
children
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 /**
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26 * @test
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27 * @bug 6942326
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28 * @summary x86 code in string_indexof() could read beyond reserved heap space
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29 *
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30 * @run main/othervm/timeout=300 -Xmx32m -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:CompileCommand=exclude,Test,main -XX:CompileCommand=exclude,Test,test_varsub_indexof -XX:CompileCommand=exclude,Test,test_varstr_indexof -XX:CompileCommand=exclude,Test,test_missub_indexof -XX:CompileCommand=exclude,Test,test_consub_indexof -XX:CompileCommand=exclude,Test,test_conmis_indexof -XX:CompileCommand=exclude,Test,test_subcon Test
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31 *
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32 */
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33
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34 public class Test {
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35
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36 static String[] strings = new String[1024];
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37 private static final int ITERATIONS = 100000;
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38
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39 public static void main(String[] args) {
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40
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41 long start_total = System.currentTimeMillis();
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42
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43 // search variable size substring in string (33 chars).
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44 String a = " 1111111111111xx1111111111111xx11y"; // +1 to execute a.substring(1) first
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45 String b = "1111111111111xx1111111111111xx11y";
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46 test_varsub_indexof(a, b);
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47
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48 // search variable size substring in string (32 chars).
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49 a = " 1111111111111xx1111111111111xx1y";
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50 b = "1111111111111xx1111111111111xx1y";
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51 test_varsub_indexof(a, b);
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52
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53 // search variable size substring in string (17 chars).
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54 a = " 1111111111111xx1y";
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55 b = "1111111111111xx1y";
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56 test_varsub_indexof(a, b);
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57
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58 // search variable size substring in string (16 chars).
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59 a = " 111111111111xx1y";
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60 b = "111111111111xx1y";
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61 test_varsub_indexof(a, b);
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62
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63 // search variable size substring in string (8 chars).
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64 a = " 1111xx1y";
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65 b = "1111xx1y";
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66 test_varsub_indexof(a, b);
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67
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68 // search variable size substring in string (7 chars).
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69 a = " 111xx1y";
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70 b = "111xx1y";
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71 test_varsub_indexof(a, b);
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72
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73
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74
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75 // search substring (17 chars) in variable size string.
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76 a = "1111111111111xx1x";
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77 b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
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78 test_varstr_indexof(a, b);
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79
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80 // search substring (16 chars) in variable size string.
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81 a = "111111111111xx1x";
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82 b = " 1111111111111xx1111111111111xx1x";
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83 test_varstr_indexof(a, b);
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84
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85 // search substring (9 chars) in variable size string.
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86 a = "11111xx1x";
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87 b = " 1111111111111xx1111111111111xx1x";
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88 test_varstr_indexof(a, b);
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89
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90 // search substring (8 chars) in variable size string.
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91 a = "1111xx1x";
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92 b = " 1111111111111xx1111111111111xx1x";
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93 test_varstr_indexof(a, b);
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94
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95 // search substring (4 chars) in variable size string.
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96 a = "xx1x";
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97 b = " 1111111111111xx1111111111111xx1x";
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98 test_varstr_indexof(a, b);
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99
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100 // search substring (3 chars) in variable size string.
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101 a = "x1x";
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102 b = " 1111111111111xx1111111111111xx1x";
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103 test_varstr_indexof(a, b);
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104
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105 // search substring (2 chars) in variable size string.
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106 a = "1y";
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107 b = " 1111111111111xx1111111111111xx1y";
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108 test_varstr_indexof(a, b);
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109
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110
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111
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112 // search non matching variable size substring in string (33 chars).
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113 a = " 1111111111111xx1111111111111xx11z"; // +1 to execute a.substring(1) first
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114 b = "1111111111111xx1111111111111xx11y";
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115 test_missub_indexof(a, b);
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116
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117 // search non matching variable size substring in string (32 chars).
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118 a = " 1111111111111xx1111111111111xx1z";
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119 b = "1111111111111xx1111111111111xx1y";
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120 test_missub_indexof(a, b);
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121
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122 // search non matching variable size substring in string (17 chars).
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123 a = " 1111111111111xx1z";
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124 b = "1111111111111xx1y";
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125 test_missub_indexof(a, b);
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126
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127 // search non matching variable size substring in string (16 chars).
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128 a = " 111111111111xx1z";
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129 b = "111111111111xx1y";
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130 test_missub_indexof(a, b);
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131
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132 // search non matching variable size substring in string (8 chars).
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133 a = " 1111xx1z";
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134 b = "1111xx1y";
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135 test_missub_indexof(a, b);
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136
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137 // search non matching variable size substring in string (7 chars).
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138 a = " 111xx1z";
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139 b = "111xx1y";
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140 test_missub_indexof(a, b);
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141
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142
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143
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144 // Testing constant substring search in variable size string.
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145
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146 // search constant substring (17 chars).
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147 b = " 1111111111111xx1111111111111xx1x"; // +1 to execute b.substring(1) first
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148 TestCon tc = new TestCon17();
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149 test_consub_indexof(tc, b);
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150
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151 // search constant substring (16 chars).
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152 b = " 1111111111111xx1111111111111xx1x";
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153 tc = new TestCon16();
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154 test_consub_indexof(tc, b);
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155
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156 // search constant substring (9 chars).
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157 b = " 1111111111111xx1111111111111xx1x";
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158 tc = new TestCon9();
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159 test_consub_indexof(tc, b);
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160
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161 // search constant substring (8 chars).
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162 b = " 1111111111111xx1111111111111xx1x";
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163 tc = new TestCon8();
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164 test_consub_indexof(tc, b);
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165
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166 // search constant substring (4 chars).
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167 b = " 1111111111111xx1111111111111xx1x";
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168 tc = new TestCon4();
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169 test_consub_indexof(tc, b);
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170
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171 // search constant substring (3 chars).
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172 b = " 1111111111111xx1111111111111xx1x";
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173 tc = new TestCon3();
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174 test_consub_indexof(tc, b);
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175
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176 // search constant substring (2 chars).
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177 b = " 1111111111111xx1111111111111xx1y";
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178 tc = new TestCon2();
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179 test_consub_indexof(tc, b);
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180
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181 // search constant substring (1 chars).
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182 b = " 1111111111111xx1111111111111xx1y";
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183 tc = new TestCon1();
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184 test_consub_indexof(tc, b);
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185
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186
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187 // search non matching constant substring (17 chars).
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188 b = " 1111111111111xx1111111111111xx1z"; // +1 to execute b.substring(1) first
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189 tc = new TestCon17();
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190 test_conmis_indexof(tc, b);
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191
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192 // search non matching constant substring (16 chars).
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193 b = " 1111111111111xx1111111111111xx1z";
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194 tc = new TestCon16();
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195 test_conmis_indexof(tc, b);
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196
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197 // search non matching constant substring (9 chars).
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198 b = " 1111111111111xx1111111111111xx1z";
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199 tc = new TestCon9();
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200 test_conmis_indexof(tc, b);
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201
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202 // search non matching constant substring (8 chars).
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203 b = " 1111111111111xx1111111111111xx1z";
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204 tc = new TestCon8();
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205 test_conmis_indexof(tc, b);
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206
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207 // search non matching constant substring (4 chars).
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208 b = " 1111111111111xx1111111111111xx1z";
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209 tc = new TestCon4();
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210 test_conmis_indexof(tc, b);
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211
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212 // search non matching constant substring (3 chars).
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213 b = " 1111111111111xx1111111111111xx1z";
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214 tc = new TestCon3();
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215 test_conmis_indexof(tc, b);
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216
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217 // search non matching constant substring (2 chars).
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218 b = " 1111111111111xx1111111111111xx1z";
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219 tc = new TestCon2();
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220 test_conmis_indexof(tc, b);
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221
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222 // search non matching constant substring (1 chars).
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223 b = " 1111111111111xx1111111111111xx1z";
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224 tc = new TestCon1();
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225 test_conmis_indexof(tc, b);
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226
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227 long end_total = System.currentTimeMillis();
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228 System.out.println("End run time: " + (end_total - start_total));
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229
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230 }
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231
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232 public static long test_init(String a, String b) {
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233 for (int i = 0; i < 512; i++) {
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234 strings[i * 2] = new String(b.toCharArray());
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235 strings[i * 2 + 1] = new String(a.toCharArray());
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236 }
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237 System.out.print(a.length() + " " + b.length() + " ");
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238 return System.currentTimeMillis();
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239 }
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240
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241 public static void test_end(String a, String b, int v, int expected, long start) {
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242 long end = System.currentTimeMillis();
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243 int res = (v/ITERATIONS);
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244 System.out.print(" " + res);
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245 System.out.println(" time:" + (end - start));
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246 if (res != expected) {
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247 System.out.println("wrong indexOf result: " + res + ", expected " + expected);
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248 System.out.println("\"" + b + "\".indexOf(\"" + a + "\")");
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249 System.exit(97);
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250 }
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251 }
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252
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253 public static int test_subvar() {
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254 int s = 0;
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255 int v = 0;
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256 for (int i = 0; i < ITERATIONS; i++) {
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257 v += strings[s].indexOf(strings[s + 1]);
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258 s += 2;
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259 if (s >= strings.length) s = 0;
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260 }
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261 return v;
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262 }
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263
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264 public static void test_varsub_indexof(String a, String b) {
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265 System.out.println("Start search variable size substring in string (" + b.length() + " chars)");
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266 long start_it = System.currentTimeMillis();
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267 int limit = 1; // last a.length() == 1
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268 while (a.length() > limit) {
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269 a = a.substring(1);
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270 long start = test_init(a, b);
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271 int v = test_subvar();
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272 test_end(a, b, v, (b.length() - a.length()), start);
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273 }
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274 long end_it = System.currentTimeMillis();
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275 System.out.println("End search variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
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276 }
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277
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278 public static void test_varstr_indexof(String a, String b) {
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279 System.out.println("Start search substring (" + a.length() + " chars) in variable size string");
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280 long start_it = System.currentTimeMillis();
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281 int limit = a.length();
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282 while (b.length() > limit) {
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283 b = b.substring(1);
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284 long start = test_init(a, b);
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285 int v = test_subvar();
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286 test_end(a, b, v, (b.length() - a.length()), start);
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287 }
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288 long end_it = System.currentTimeMillis();
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289 System.out.println("End search substring (" + a.length() + " chars) in variable size string, time: " + (end_it - start_it));
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290 }
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291
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292 public static void test_missub_indexof(String a, String b) {
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293 System.out.println("Start search non matching variable size substring in string (" + b.length() + " chars)");
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294 long start_it = System.currentTimeMillis();
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295 int limit = 1; // last a.length() == 1
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296 while (a.length() > limit) {
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297 a = a.substring(1);
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298 long start = test_init(a, b);
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299 int v = test_subvar();
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300 test_end(a, b, v, (-1), start);
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301 }
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302 long end_it = System.currentTimeMillis();
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303 System.out.println("End search non matching variable size substring in string (" + b.length() + " chars), time: " + (end_it - start_it));
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304 }
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305
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306
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307
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308 public static void test_consub_indexof(TestCon tc, String b) {
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309 System.out.println("Start search constant substring (" + tc.constr().length() + " chars)");
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310 long start_it = System.currentTimeMillis();
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311 int limit = tc.constr().length();
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312 while (b.length() > limit) {
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313 b = b.substring(1);
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314 long start = test_init(tc.constr(), b);
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315 int v = test_subcon(tc);
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316 test_end(tc.constr(), b, v, (b.length() - tc.constr().length()), start);
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317 }
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318 long end_it = System.currentTimeMillis();
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319 System.out.println("End search constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
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320 }
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321
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322 public static void test_conmis_indexof(TestCon tc, String b) {
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323 System.out.println("Start search non matching constant substring (" + tc.constr().length() + " chars)");
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324 long start_it = System.currentTimeMillis();
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325 int limit = tc.constr().length();
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326 while (b.length() > limit) {
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327 b = b.substring(1);
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328 long start = test_init(tc.constr(), b);
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329 int v = test_subcon(tc);
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330 test_end(tc.constr(), b, v, (-1), start);
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331 }
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332 long end_it = System.currentTimeMillis();
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333 System.out.println("End search non matching constant substring (" + tc.constr().length() + " chars), time: " + (end_it - start_it));
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334 }
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335
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336 public static int test_subcon(TestCon tc) {
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337 int s = 0;
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338 int v = 0;
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339 for (int i = 0; i < ITERATIONS; i++) {
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340 v += tc.indexOf(strings[s]);
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341 s += 2;
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342 if (s >= strings.length) s = 0;
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343 }
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344 return v;
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345 }
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346
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347 private interface TestCon {
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348 public String constr();
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349 public int indexOf(String str);
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350 }
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351
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352 // search constant substring (17 chars).
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353 private final static class TestCon17 implements TestCon {
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354 private static final String constr = "1111111111111xx1x";
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355 public String constr() { return constr; }
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356 public int indexOf(String str) { return str.indexOf(constr); }
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357 }
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358
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359 // search constant substring (16 chars).
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360 private final static class TestCon16 implements TestCon {
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361 private static final String constr = "111111111111xx1x";
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362 public String constr() { return constr; }
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363 public int indexOf(String str) { return str.indexOf(constr); }
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364 }
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365
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366 // search constant substring (9 chars).
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367 private final static class TestCon9 implements TestCon {
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368 private static final String constr = "11111xx1x";
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369 public String constr() { return constr; }
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370 public int indexOf(String str) { return str.indexOf(constr); }
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371 }
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372
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373 // search constant substring (8 chars).
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374 private final static class TestCon8 implements TestCon {
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375 private static final String constr = "1111xx1x";
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376 public String constr() { return constr; }
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377 public int indexOf(String str) { return str.indexOf(constr); }
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378 }
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379
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380 // search constant substring (4 chars).
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381 private final static class TestCon4 implements TestCon {
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382 private static final String constr = "xx1x";
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383 public String constr() { return constr; }
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384 public int indexOf(String str) { return str.indexOf(constr); }
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385 }
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386
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387 // search constant substring (3 chars).
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388 private final static class TestCon3 implements TestCon {
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389 private static final String constr = "x1x";
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390 public String constr() { return constr; }
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391 public int indexOf(String str) { return str.indexOf(constr); }
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392 }
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393
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394 // search constant substring (2 chars).
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395 private final static class TestCon2 implements TestCon {
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396 private static final String constr = "1y";
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397 public String constr() { return constr; }
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398 public int indexOf(String str) { return str.indexOf(constr); }
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399 }
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400
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401
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402 // search constant substring (1 chars).
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403 private final static class TestCon1 implements TestCon {
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404 private static final String constr = "y";
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405 public String constr() { return constr; }
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406 public int indexOf(String str) { return str.indexOf(constr); }
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407 }
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408 }
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409