author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 03 May 2010 14:06:43 +0300 | |
changeset 22 | ddc455616bd6 |
parent 0 | e4d67989cc36 |
child 45 | 4b03adbd26ca |
child 57 | 2efc27d87e1c |
permissions | -rw-r--r-- |
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/************************************************************************ |
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* |
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* file.cpp - definitions of testsuite file I/O helpers |
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* |
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* $Id: file.cpp 290020 2005-09-18 23:58:30Z sebor $ |
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* |
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************************************************************************ |
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* |
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* Copyright (c) 1994-2005 Quovadx, Inc., acting through its Rogue Wave |
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* Software division. Licensed under the Apache License, Version 2.0 (the |
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* "License"); you may not use this file except in compliance with the |
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* License. You may obtain a copy of the License at |
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* http://www.apache.org/licenses/LICENSE-2.0. Unless required by |
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* applicable law or agreed to in writing, software distributed under |
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR |
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* CONDITIONS OF ANY KIND, either express or implied. See the License |
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* for the specific language governing permissions and limitations under |
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* the License. |
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* |
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**************************************************************************/ |
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// expand _TEST_EXPORT macros |
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#define _RWSTD_TEST_SRC |
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#include <testdefs.h> |
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#include <file.h> |
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#if defined __linux__ |
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// on Linux define _XOPEN_SOURCE to get CODESET defined in <langinfo.h> |
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# define _XOPEN_SOURCE 500 /* Single Unix conformance */ |
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// bring __int32_t into scope (otherwise <wctype.h> fails to compile) |
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# include <sys/types.h> |
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#endif // __linux__ |
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#include <fcntl.h> |
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#include <sys/stat.h> |
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#if (!defined (_WIN32) && !defined (_WIN64)) || defined (__SYMBIAN32__) |
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# include <langinfo.h> // for CODESET |
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# include <unistd.h> |
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#else |
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# include <io.h> |
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#endif |
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#include <assert.h> // for assert |
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#include <errno.h> // for errno |
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#include <locale.h> // for LC_XXX macros |
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#include <stdio.h> // for sprintf, ... |
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#include <stdlib.h> // for free, malloc, realloc |
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#include <string.h> // for strcat, strcpy, strlen, ... |
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#include <ctype.h> |
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#include <wchar.h> // for wcslen, ... |
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#ifndef PATH_MAX |
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# define PATH_MAX 1024 |
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#endif |
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#ifndef P_tmpdir |
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# define P_tmpdir "/tmp/" |
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#endif |
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#ifndef _RWSTD_NO_PURE_C_HEADERS |
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IMPORT_C int mkstemp (char*); |
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#endif // _RWSTD_NO_PURE_C_HEADERS |
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// write `str' using symbolic names from the Portable Character Set (PCS) |
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// or using the <U00XX> notations for narrow characters outside that set |
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// if (0 == str), writes out the CHARMAP section of the locale definition |
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// file for the Portable Character Set (in POSIX-compliant format) |
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_TEST_EXPORT void pcs_write (void *fpv, const char *str) |
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{ |
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FILE* const fp = _RWSTD_STATIC_CAST (FILE*, fpv); |
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// ASCII (ISO-646) character map definition |
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static const char* charmap[] = { |
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"<NUL>", "<SOH>", "<STX>", "<ETX>", "<EOT>", "<ENQ>", "<ACK>", "<BEL>", |
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"<backspace>", |
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"<tab>", |
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"<newline>", |
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"<vertical-tab>", |
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"<form-feed>", |
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"<carriage-return>", |
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"<SO>", "<SI>", "<DLE>", "<DC1>", "<DC2>", "<DC3>", "<DC4>", "<NAK>", |
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"<SYN>","<ETB>", "<CAN>", "<EM>", "<SUB>", "<ESC>", "<IS4>", "<IS3>", |
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"<IS2>", "<IS1>", |
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"<space>", |
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/* ! */ "<exclamation-mark>", |
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/* " */ "<quotation-mark>", |
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/* # */ "<number-sign>", |
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/* $ */ "<dollar-sign>", |
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/* % */ "<percent-sign>", |
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/* & */ "<ampersand>", |
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/* ' */ "<apostrophe>", |
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/* ( */ "<left-parenthesis>", |
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/* ) */ "<right-parenthesis>", |
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/* * */ "<asterisk>", |
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/* + */ "<plus-sign>", |
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/* , */ "<comma>", |
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/* - */ "<hyphen>", |
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102 |
/* . */ "<period>", |
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103 |
/* / */ "<slash>", |
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|
104 |
/* 0 */ "<zero>", |
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105 |
/* 1 */ "<one>", |
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106 |
/* 2 */ "<two>", |
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107 |
/* 3 */ "<three>", |
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108 |
/* 4 */ "<four>", |
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109 |
/* 5 */ "<five>", |
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110 |
/* 6 */ "<six>", |
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111 |
/* 7 */ "<seven>", |
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112 |
/* 8 */ "<eight>", |
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113 |
/* 9 */ "<nine>", |
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114 |
/* : */ "<colon>", |
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115 |
/* ; */ "<semicolon>", |
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116 |
/* < */ "<less-than-sign>", |
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117 |
/* = */ "<equals-sign>", |
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118 |
/* > */ "<greater-than-sign>", |
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119 |
/* ? */ "<question-mark>", |
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120 |
/* @ */ "<commercial-at>", |
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121 |
"<A>", "<B>", "<C>", "<D>", "<E>", "<F>", "<G>", "<H>", "<I>", "<J>", |
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122 |
"<K>", "<L>", "<M>", "<N>", "<O>", "<P>", "<Q>", "<R>", "<S>", "<T>", |
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123 |
"<U>", "<V>", "<W>", "<X>", "<Y>", "<Z>", |
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124 |
/* [ */ "<left-square-bracket>", |
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125 |
/* \ */ "<backslash>", |
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126 |
/* ] */ "<right-square-bracket>", |
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127 |
/* ^ */ "<circumflex>", |
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128 |
/* _ */ "<underscore>", |
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129 |
/* ` */ "<grave-accent>", |
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130 |
"<a>", "<b>", "<c>", "<d>", "<e>", "<f>", "<g>", "<h>", "<i>", "<j>", |
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131 |
"<k>", "<l>", "<m>", "<n>", "<o>", "<p>", "<q>", "<r>", "<s>", "<t>", |
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132 |
"<u>", "<v>", "<w>", "<x>", "<y>", "<z>", |
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133 |
/* { */ "<left-brace>", |
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134 |
/* | */ "<vertical-line>", |
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135 |
/* } */ "<right-brace>", |
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136 |
/* ~ */ "<tilde>", |
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137 |
"<DEL>" |
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138 |
}; |
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139 |
|
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140 |
if (str) { |
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141 |
// write out `str' using the charmap above |
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142 |
for (; *str; ++str) { |
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const unsigned char uc = _RWSTD_STATIC_CAST (unsigned char, *str); |
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144 |
|
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145 |
if (uc < sizeof charmap / sizeof *charmap) |
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146 |
fprintf (fp, "%s", charmap [uc]); |
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147 |
else |
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148 |
fprintf (fp, "<U%04X>", uc); |
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149 |
} |
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150 |
} |
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151 |
else { |
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152 |
|
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153 |
#if !defined (_WIN32) && !defined (_WIN64) |
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const char* const codeset = nl_langinfo (CODESET); |
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155 |
#else |
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156 |
// FIXME: determine the current code page |
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const char* const codeset = "UTF-8"; |
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158 |
#endif // _WIN{32,64} |
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159 |
|
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160 |
fprintf (fp, "<code_set_name> \"%s\"\n", codeset); |
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161 |
fprintf (fp, "<mb_cur_max> 1\n"); |
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162 |
fprintf (fp, "<mb_cur_min> 1\n"); |
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163 |
|
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164 |
fprintf (fp, "CHARMAP\n"); |
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165 |
|
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166 |
// write out the charmap above |
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167 |
for (unsigned i = 0; i != sizeof charmap / sizeof *charmap; ++i) { |
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168 |
fprintf (fp, "%s \\x%02x\n", charmap [i], i); |
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169 |
} |
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170 |
|
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171 |
// write out duplicate symbolic names to prevent warnings |
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172 |
fprintf (fp, "<alert> \\x%02x\n", '\a'); |
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173 |
fprintf (fp, "<hyphen-minus> \\x%02x\n", '-'); |
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174 |
fprintf (fp, "<full-stop> \\x%02x\n", '.'); |
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|
175 |
fprintf (fp, "<solidus> \\x%02x\n", '/'); |
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|
176 |
fprintf (fp, "<reverse-solidus> \\x%02x\n", '\\'); |
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177 |
fprintf (fp, "<circumflex-accent> \\x%02x\n", '^'); |
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|
178 |
fprintf (fp, "<underline> \\x%02x\n", '_'); |
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179 |
fprintf (fp, "<low-line> \\x%02x\n", '_'); |
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180 |
fprintf (fp, "<left-curly-bracket> \\x%02x\n", '{'); |
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181 |
fprintf (fp, "<right-curly-bracket> \\x%02x\n", '}'); |
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|
182 |
|
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183 |
fprintf (fp, "END CHARMAP\n"); |
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184 |
} |
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185 |
} |
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|
186 |
|
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|
187 |
|
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188 |
_TEST_EXPORT |
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189 |
const char* rw_tmpnam (char *buf) |
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190 |
{ |
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191 |
#ifndef _RWSTD_NO_MKSTEMP |
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192 |
# define TMP_TEMPLATE "tmpfile-XXXXXX" |
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193 |
|
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194 |
if (!buf) { |
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195 |
static char fname_buf [sizeof (P_tmpdir) + sizeof (TMP_TEMPLATE)]; |
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|
196 |
|
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197 |
buf = fname_buf; |
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198 |
*buf = '\0'; |
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|
199 |
} |
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|
200 |
|
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|
201 |
if ('\0' == *buf) { |
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202 |
// copy the template to the buffer; make sure there is exactly |
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203 |
// one path separator character between P_tmpdir and the file |
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204 |
// name template (it doesn't really matter how many there are |
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// as long as it's at least one, but one looks better than two |
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// in diagnostic messages) |
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size_t len = sizeof (P_tmpdir) - 1; |
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208 |
|
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memcpy (buf, P_tmpdir, len); |
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if (_RWSTD_PATH_SEP != buf [len - 1]) |
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buf [len++] = _RWSTD_PATH_SEP; |
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|
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memcpy (buf + len, TMP_TEMPLATE, sizeof TMP_TEMPLATE); |
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} |
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215 |
|
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// prevent annoying glibc warnings (issued by the linker): |
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// the use of `tmpnam' is dangerous, better use `mkstemp' |
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|
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const int fd = mkstemp (buf); |
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|
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if (-1 == fd) { |
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fprintf (stderr, "%s:%d: mkstemp(\"%s\") failed: %s\n", |
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__FILE__, __LINE__, buf, strerror (errno)); |
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return 0; |
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} |
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|
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close (fd); |
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|
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const char* const fname = buf; |
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|
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# undef TMP_TEMPLATE |
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#else // if defined (_RWSTD_NO_MKSTEMP) |
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233 |
|
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# if defined (_WIN32) || defined (_WIN64) |
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|
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// create a temporary file name |
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char* fname = tempnam (P_tmpdir, ".rwtest-tmp"); |
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238 |
|
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if (fname) { |
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240 |
|
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static char tmpbuf [256]; |
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242 |
|
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if (0 == buf) |
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buf = tmpbuf; |
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245 |
|
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_RWSTD_ASSERT (strlen (fname) < sizeof (tmpbuf)); |
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247 |
|
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// copy the generated temporary file name to the provided buffer |
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strcpy (buf, fname); |
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250 |
|
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// free the storage allocated by tempnam() |
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free (fname); |
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fname = buf; |
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} |
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else { |
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fprintf (stderr, "%s:%d: tempnam(\"%s\", \"%s\") failed: %s\n", |
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__FILE__, __LINE__, |
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P_tmpdir, ".rwtest-tmp", strerror (errno)); |
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} |
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|
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# else |
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# if defined (__hpux) && defined (_RWSTD_REENTRANT) |
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|
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// on HP-UX, in reentrant mode, tmpnam(0) fails by design |
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|
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if (!buf) { |
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static char tmpbuf [L_tmpnam]; |
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buf = tmpbuf; |
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*buf = '\0'; |
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} |
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|
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# endif // __hpux && _REENTRANT |
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|
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const char* const fname = tmpnam (buf); |
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|
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if (!fname) |
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fprintf (stderr, "%s:%d: tmpnam(\"%s\") failed: %s\n", |
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__FILE__, __LINE__, buf, strerror (errno)); |
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|
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# endif // _WIN{32,64} |
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#endif // _RWSTD_NO_MKSTEMP |
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|
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return fname; |
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} |
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|
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|
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_TEST_EXPORT |
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size_t rw_fsize (const char *fname) |
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{ |
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#ifdef __SYMBIAN32__ |
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|
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struct stat sb; |
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|
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#ifdef __ARMCC__ |
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#pragma diag_suppress 63 |
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#endif |
0
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if (-1 == stat (fname, &sb)) |
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return _RWSTD_SIZE_MAX; |
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|
0
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|
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return sb.st_size; |
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#elif defined (_WIN32) || defined (_WIN64) |
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|
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// note: both method of obtaining the size of a file |
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// just written by a process may fail (i.e., the size |
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// will be 0) |
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|
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# if 1 |
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|
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struct _stat sb; |
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diff
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|
311 |
|
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|
312 |
if (-1 == _stat (fname, &sb)) |
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diff
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|
313 |
return _RWSTD_SIZE_MAX; |
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diff
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|
314 |
|
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Revision: 201002
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diff
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|
315 |
return sb.st_size; |
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Revision: 201002
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diff
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|
316 |
|
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Revision: 201002
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|
317 |
# else |
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diff
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|
318 |
|
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Revision: 201002
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diff
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|
319 |
// #include <windows.h> for CreateFile() and GetFileSize() |
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Revision: 201002
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|
320 |
const HANDLE hfile = |
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Revision: 201002
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parents:
diff
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|
321 |
CreateFile (fname, |
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Revision: 201002
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diff
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|
322 |
GENERIC_READ, |
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Revision: 201002
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diff
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|
323 |
0, // dwShareMode, |
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Revision: 201002
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parents:
diff
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|
324 |
0, // lpSecurityAttributes, |
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Revision: 201002
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parents:
diff
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|
325 |
OPEN_EXISTING, // dwCreationDisposition, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
326 |
FILE_ATTRIBUTE_NORMAL, // dwFlagsAndAttributes, |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
327 |
0); // hTemplateFile |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
328 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
329 |
if (INVALID_HANDLE_VALUE == hfile) |
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Revision: 201002
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parents:
diff
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|
330 |
return _RWSTD_SIZE_MAX; |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
331 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
332 |
const size_t size = GetFileSize (hfile, 0); |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
333 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
334 |
CloseHandle (hfile); |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
335 |
|
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Revision: 201002
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parents:
diff
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|
336 |
return size; |
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Revision: 201002
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diff
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|
337 |
|
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Revision: 201002
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parents:
diff
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|
338 |
# endif // 0/1 |
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Revision: 201002
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diff
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|
339 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
340 |
#else // if !defined (_WIN{32,64}) |
e4d67989cc36
Revision: 201002
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diff
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|
341 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
342 |
struct stat sb; |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
343 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
344 |
if (stat (fname, &sb) == -1) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
345 |
return _RWSTD_SIZE_MAX; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
346 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
347 |
return sb.st_size; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
348 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
349 |
#endif // _WIN{32,64} |
e4d67989cc36
Revision: 201002
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parents:
diff
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|
350 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
351 |
} |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
352 |
|
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
353 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
354 |
_TEST_EXPORT |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
355 |
void* rw_fread (const char *fname, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
356 |
size_t *size /* = 0 */, |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
357 |
const char *mode /* = "r" */) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
358 |
{ |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
359 |
// buffer and size supplied by the user |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
360 |
static char* usrbuf = 0; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
361 |
static size_t usrsize = 0; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
362 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
363 |
// when called with 0 file name and non-0 size, set the static |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
364 |
// local buffer for the functions to use in subsequent calls |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
365 |
// with non-0 `fname' instead of dynamically allocating a new |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
// buffer |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
367 |
if (!fname && size) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
369 |
char* const oldbuf = usrbuf; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
370 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
usrbuf = _RWSTD_CONST_CAST (char*, mode); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
usrsize = usrbuf ? *size : 0; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
return oldbuf; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
375 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
376 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
static char buffer [1024]; |
e4d67989cc36
Revision: 201002
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parents:
diff
changeset
|
378 |
static char* buf = usrbuf ? usrbuf : buffer; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
static size_t bufsize = usrbuf ? usrsize : sizeof buffer; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
// open the file in the specified mode |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
FILE* const fp = fopen (fname, mode); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
if (!fp) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
return 0; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
386 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
for (char *bufend = buf; ; ) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
// compute the total number of bytes read from the file so far |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
// and the number of bytes that are still available in the buffer |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
390 |
const size_t bytes_read = size_t (bufend - buf); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
391 |
const size_t bytes_avail = bufsize - bytes_read; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
392 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
393 |
// try to read the contents of the file into the buffer |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
394 |
const size_t nbytes = fread (bufend, 1, bytes_avail, fp); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
395 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
if (0 == nbytes) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
*bufend = '\0'; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
398 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
399 |
// store the number of bytes read |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
400 |
if (size) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
*size = bytes_read; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
break; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
404 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
405 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
if (nbytes == bytes_avail) { |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
407 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
// do not grow user-specified buffer |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
if (buf == usrbuf) |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
break; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
const size_t newsize = (bufsize + 1) * 2; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
// increase the size of the buffer and continue reading |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
char *tmp = new char [newsize]; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
memcpy (tmp, buf, bufsize); |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
417 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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418 |
// deallocate buffer only if it's been |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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419 |
// previously dynamically allocated |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
420 |
if (buf != buffer) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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421 |
delete[] buf; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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422 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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423 |
bufsize = newsize; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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424 |
bufend = tmp + bytes_read; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
425 |
buf = tmp; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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426 |
} |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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427 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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428 |
bufend += nbytes; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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429 |
} |
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|
430 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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431 |
fclose (fp); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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432 |
|
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Revision: 201002
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433 |
return buf; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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434 |
} |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
435 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
436 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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437 |
_TEST_EXPORT |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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438 |
size_t rw_fwrite (const char *fname, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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439 |
const void *buf, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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440 |
size_t size /* = -1 */, |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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441 |
const char *mode /* = "w" */) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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442 |
{ |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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443 |
FILE *fp = 0; |
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Revision: 201002
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444 |
|
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Revision: 201002
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|
445 |
if (buf) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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446 |
fp = fopen (fname, mode); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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447 |
else { |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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448 |
remove (fname); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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449 |
return 0; |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
450 |
} |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
451 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
452 |
if (!fp) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
453 |
return size_t (-1); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
454 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
455 |
if (size_t (-1) == size) |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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456 |
size = strlen (_RWSTD_STATIC_CAST (const char*, buf)); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
457 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
458 |
// fwrite() returns the number of elements successfully written |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
459 |
// set it up so that the number of elements == the number of bytes |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
460 |
const size_t nbytes = fwrite (buf, 1 /* byte */, size, fp); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
461 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
462 |
fclose (fp); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
463 |
|
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
464 |
return nbytes; |
e4d67989cc36
Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
465 |
} |