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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 // Regression test for STL seekg |
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19 |
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20 #include <cstdio> // I really like formatted output. |
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21 #include <cstdarg> |
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22 #include <fstream> |
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23 #include <vector> |
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24 #include <iostream> |
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25 //#include <stdio.h> |
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26 |
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27 |
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28 |
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29 #ifndef cstd |
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30 #ifdef _MSC_VER |
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31 #define cstd |
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32 #else |
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33 //#define cstd std |
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34 #define cstd |
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35 using namespace std; |
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36 #endif |
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37 #endif |
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38 |
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39 |
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40 class Error : public std::exception |
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41 { |
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42 public: |
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43 Error(const char *pszfmt, ...); |
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44 const char *what() const; |
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45 private: |
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46 char mMessage[256]; |
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47 }; |
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48 |
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49 #define countof(x) (sizeof(x)/sizeof((x)[0])) |
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50 |
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51 Error::Error(const char *pszfmt, ...) |
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52 { |
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53 using cstd::va_list; |
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54 |
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55 cstd::va_list ap; |
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56 va_start(ap, pszfmt); |
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57 cstd::vsnprintf(mMessage, countof(mMessage), pszfmt, ap); |
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58 va_end(ap); |
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59 } |
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60 |
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61 const char *Error::what() const |
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62 { |
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63 return mMessage; |
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64 } |
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65 |
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66 |
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67 // usage: testseek filename |
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68 #ifdef __SYMBIAN32__ |
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69 int fstream_test(int, char**) |
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70 #else |
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71 int main(int argc, char **argv) |
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72 #endif |
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73 { |
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74 try |
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75 { |
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76 #ifndef __SYMBIAN32__ |
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77 if (argc != 2) { |
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78 throw Error ("Wrong number of arguments (Usage: testseek filename)"); |
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79 } |
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80 #endif |
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81 std::ifstream ifs; |
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82 ifs.exceptions(std::ios::badbit); |
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83 #ifndef __SYMBIAN32__ |
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84 ifs.open(argv[1]); |
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85 #else |
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86 ifs.open("c:\\testframework\\tstdcpp\\fstream1.input"); |
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87 #endif |
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88 // First pass: read contents of file into character vector |
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89 std::vector<char> charvec; |
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90 cstd::printf("First pass:\n"); |
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91 for(;;) |
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92 { |
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93 char ch; |
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94 if (!ifs.get(ch)) { |
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95 break; |
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96 } |
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97 cstd::printf("%c", ch); |
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98 charvec.push_back(ch); |
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99 } |
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100 cstd::printf("First pass done\n"); |
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101 |
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102 // Second pass: get positions into pos vector, checking chars |
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103 std::vector<std::ios::pos_type> posvec; |
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104 ifs.clear(); // necessary? |
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105 ifs.seekg(0); |
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106 std::vector<char>::const_iterator char_it; |
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107 cstd::printf("Second pass:\n"); |
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108 for(char_it = charvec.begin(); char_it != charvec.end(); ++char_it) |
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109 { |
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110 std::ios::pos_type pos = ifs.tellg(); |
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111 posvec.push_back(pos); |
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112 char ch; |
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113 if (!ifs.get(ch)) { |
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114 break; |
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115 } |
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116 cstd::printf("%c", ch); |
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117 if (ch != *char_it) { |
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118 #ifdef __SYMBIAN32__ |
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119 Error e1("Character mismatch: got '%c', expected '%c'",ch, *char_it); |
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120 throw e1; |
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121 #else |
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122 throw Error("Character mismatch: got '%c', expected '%c'",ch, *char_it); |
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123 #endif |
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124 } |
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125 } |
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126 if (char_it != charvec.end()) { |
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127 #ifdef __SYMBIAN32__ |
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128 Error e2("Unexpected end of file"); |
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129 throw e2; |
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130 #else |
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131 throw Error("Unexpected end of file"); |
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132 #endif |
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133 } |
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134 cstd::printf("Second pass done\n"); |
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135 |
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136 // Third pass: seek to each saved position and read next char |
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137 ifs.clear(); // necessary, but I don't like it |
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138 std::vector<std::ios::pos_type>::const_iterator pos_it; |
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139 cstd::printf("Third pass:\n"); |
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140 for(char_it = charvec.begin(), pos_it = posvec.begin(); |
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141 char_it != charvec.end(); ++char_it, ++pos_it) |
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142 { |
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143 ifs.seekg(*pos_it); |
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144 char ch; |
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145 if (!ifs.get(ch)) { |
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146 #ifdef __SYMBIAN32__ |
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147 Error e3("End of file when expecting '%c'", *char_it); |
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148 throw e3; |
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149 #else |
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150 throw Error("End of file when expecting '%c'", *char_it); |
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151 #endif |
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152 } |
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153 cstd::printf("%c", ch); |
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154 if (ch != *char_it) { |
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155 Error e4("Character mismatch: got '%c', expected '%c'",ch, *char_it); |
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156 throw e4; |
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157 } |
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158 } |
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159 cstd::printf("Third pass done\n"); |
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160 cstd::printf("Test passed\n"); |
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161 std::cerr<<"Testing cerr...\n"; |
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162 std::cerr<<"Testing cerr"<<std::endl; |
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163 std::cerr<<"Testing cerr with char "<<(char)'5'<<std::endl; |
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164 std::cerr<<"Testing cerr with float "<<(float)5.555<<std::endl; |
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165 std::cerr<<"Testing cerr with int "<<(int)5<<std::endl; |
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166 |
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167 } |
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168 catch (std::exception &e) |
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169 { |
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170 cstd::printf("\nCaught exception: %s\n", e.what()); |
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171 cstd::printf("Test failed!\n"); |
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172 return 1; |
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173 } |
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174 return 0; |
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175 } |
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176 // end of program |