1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2007 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #include<stdlib.h> |
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20 | #include<lemon/random.h> |
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21 | #include<lemon/time_measure.h> |
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22 | |
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23 | using namespace lemon; |
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24 | |
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25 | void f_no() |
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26 | { |
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27 | } |
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28 | |
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29 | inline void f_noi() |
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30 | { |
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31 | } |
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32 | |
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33 | inline void f_i() |
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34 | { |
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35 | static int r; |
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36 | r=5; |
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37 | } |
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38 | |
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39 | inline void f_l() |
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40 | { |
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41 | static long int r; |
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42 | r=5; |
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43 | } |
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44 | |
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45 | inline void f_d() |
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46 | { |
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47 | static double r; |
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48 | r=5; |
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49 | } |
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50 | |
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51 | inline void f_rand() |
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52 | { |
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53 | static int r; |
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54 | r=rand(); |
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55 | } |
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56 | |
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57 | inline void f_random() |
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58 | { |
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59 | static long int r; |
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60 | r=random(); |
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61 | } |
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62 | |
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63 | inline void f_drand48() |
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64 | { |
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65 | static double r; |
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66 | r=drand48(); |
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67 | } |
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68 | |
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69 | inline void f_rnd_d() |
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70 | { |
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71 | static double r; |
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72 | r=rnd(); |
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73 | } |
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74 | inline void f_rnd_int1000() |
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75 | { |
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76 | static int r; |
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77 | r=rnd[1000]; |
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78 | } |
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79 | inline void f_rnd_bool() |
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80 | { |
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81 | static bool r; |
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82 | r=rnd.boolean(); |
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83 | } |
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84 | |
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85 | // inline void f_() |
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86 | // { |
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87 | // static double r; |
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88 | // r=; |
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89 | // } |
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90 | |
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91 | int main() |
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92 | { |
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93 | TimeStamp full; |
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94 | TimeStamp t; |
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95 | unsigned int n; |
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96 | |
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97 | const double TEST_DURATION=10; |
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98 | |
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99 | t=runningTimeTest(f_no,2,&n,&full); |
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100 | |
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101 | t=runningTimeTest(f_no,TEST_DURATION,&n,&full); |
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102 | std::cout << "EMPTY: "; |
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103 | std::cout << t.userTime() << " (" << n << " tests)\n"; |
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104 | |
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105 | t=runningTimeTest(f_noi,TEST_DURATION,&n,&full); |
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106 | std::cout << "INLINED EMPTY: "; |
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107 | std::cout << t.userTime() << " (" << n << " tests)\n"; |
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108 | |
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109 | TimeStamp ti=t=runningTimeTest(f_i,TEST_DURATION,&n,&full); |
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110 | std::cout << "INT COPY: "; |
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111 | std::cout << t.userTime() << " (" << n << " tests)\n"; |
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112 | |
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113 | TimeStamp tl=t=runningTimeTest(f_l,TEST_DURATION,&n,&full); |
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114 | std::cout << "LONG COPY: "; |
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115 | std::cout << t.userTime() << " (" << n << " tests)\n"; |
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116 | |
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117 | TimeStamp td=t=runningTimeTest(f_d,TEST_DURATION,&n,&full); |
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118 | std::cout << "DOUBLE COPY: "; |
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119 | std::cout << t.userTime() << " (" << n << " tests)\n"; |
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120 | |
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121 | t=runningTimeTest(f_rand,TEST_DURATION,&n,&full); |
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122 | std::cout << "rand(): "; |
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123 | std::cout << (t-ti).userTime() << " (" << n << " tests)\n"; |
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124 | |
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125 | t=runningTimeTest(f_random,TEST_DURATION,&n,&full); |
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126 | std::cout << "random(): "; |
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127 | std::cout << (t-tl).userTime() << " (" << n << " tests)\n"; |
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128 | |
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129 | t=runningTimeTest(f_drand48,TEST_DURATION,&n,&full); |
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130 | std::cout << "drand48(): "; |
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131 | std::cout << (t-td).userTime() << " (" << n << " tests)\n"; |
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132 | |
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133 | t=runningTimeTest(f_rnd_d,TEST_DURATION,&n,&full); |
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134 | std::cout << "rnd(): "; |
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135 | std::cout << (t-td).userTime() << " (" << n << " tests)\n"; |
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136 | |
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137 | t=runningTimeTest(f_rnd_int1000,TEST_DURATION,&n,&full); |
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138 | std::cout << "rnd[1000]: "; |
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139 | std::cout << (t-ti).userTime() << " (" << n << " tests)\n"; |
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140 | |
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141 | t=runningTimeTest(f_rnd_bool,TEST_DURATION,&n,&full); |
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142 | std::cout << "rnd.boolean(): "; |
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143 | std::cout << (t-ti).userTime() << " (" << n << " tests)\n"; |
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144 | |
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145 | // t=runningTimeTest(f_,TEST_DURATION,&n,&full); |
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146 | // std::cout << "\n"; |
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147 | // std::cout << t << " (" << n << " tests)\n"; |
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148 | // std::cout << "Total: " << full << "\n\n"; |
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149 | |
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150 | return 0; |
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151 | } |
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