Mercurial > fife-parpg

annotate engine/core/vfs/raw/rawdata.cpp @ 2:e84dccee1bb7

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* add myself to authors * fix missing break in guimanager * when an event occurs over an guichan window the event is marked as consumedByGuichan, but the event is still distributed to all event listeners, those can check via event.isConsumedByGuichan...
author spq@33b003aa-7bff-0310-803a-e67f0ece8222
date Tue, 01 Jul 2008 17:43:35 +0000
parents 4a0efb7baf70
children 90005975cdbb
rev   line source
0
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1 /***************************************************************************
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or modify *
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7 * it under the terms of the GNU General Public License as published by *
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8 * the Free Software Foundation; either version 2 of the License, or *
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9 * (at your option) any later version. *
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10 * *
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11 * This program is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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14 * GNU General Public License for more details. *
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15 * *
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16 * You should have received a copy of the GNU General Public License *
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17 * along with this program; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23 #include <algorithm>
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24 #include <vector>
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25 #include <string>
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26
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27 // 3rd party library includes
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28
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29 // FIFE includes
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30 // These includes are split up in two parts, separated by one empty line
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31 // First block: files included from the FIFE root src directory
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32 // Second block: files included from the same folder
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33 #include "util/base/exception.h"
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34 #include "util/log/logger.h"
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35
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36 #include "rawdata.h"
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37
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38 namespace FIFE {
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39 static Logger _log(LM_VFS);
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40
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41 RawData::RawData(RawDataSource* datasource) : m_datasource(datasource), m_index_current(0) {
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42
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43 }
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44
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45 RawData::~RawData() {
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46 delete m_datasource;
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47 }
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48
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49 std::vector<uint8_t> RawData::getDataInBytes() {
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50 std::vector<uint8_t> target;
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51 uint32_t size = getDataLength();
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52 uint8_t* array = new uint8_t[size];
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53 readInto(array, size);
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54 for (uint32_t i = 0; i < size; i++) {
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55 target.push_back(array[i]);
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56 }
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57 delete array;
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58 return target;
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59 }
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60
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61 std::vector<std::string> RawData::getDataInLines() {
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62 std::vector<std::string> target;
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63
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64 std::string line;
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65 while (getLine(line)) {
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66 target.push_back(line);
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67 }
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68 return target;
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69 }
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70
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71 unsigned int RawData::getDataLength() const {
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72 return m_datasource->getSize();
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73 }
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74
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75 unsigned int RawData::getCurrentIndex() const {
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76 return m_index_current;
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77 }
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78
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79 void RawData::setIndex(unsigned int index) {
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80 if (index > getDataLength())
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81 throw IndexOverflow(__FUNCTION__);
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82
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83 m_index_current = index;
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84 }
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85
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86 void RawData::moveIndex(int offset) {
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87 setIndex(getCurrentIndex() + offset);
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88 }
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89
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90 void RawData::readInto(uint8_t* buffer, size_t len) {
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91 if (m_index_current + len > getDataLength()) {
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92 FL_LOG(_log, LMsg("RawData") << m_index_current << " : " << len << " : " << getDataLength());
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93 throw IndexOverflow(__FUNCTION__);
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94 }
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95
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96 m_datasource->readInto(buffer, m_index_current, len);
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97 m_index_current += len;
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98 }
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99
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100 uint8_t RawData::read8() {
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101 return readSingle<uint8_t>();
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102 }
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103
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104 uint16_t RawData::read16Little() {
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105 uint16_t val = readSingle<uint16_t>();
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106 return littleToHost(val);
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107 }
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108
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109 uint32_t RawData::read32Little() {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 uint32_t val = readSingle<uint32_t>();
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111 return littleToHost(val);
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112 }
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113
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 uint16_t RawData::read16Big() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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115 uint16_t val = readSingle<uint16_t>();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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116 return bigToHost(val);
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117 }
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118
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119 uint32_t RawData::read32Big() {
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120 uint32_t val = readSingle<uint32_t>();
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121 return bigToHost(val);
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122 }
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123
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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124 std::string RawData::readString(size_t len) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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125 char* str = new char[len+1];
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126 readInto(reinterpret_cast<uint8_t*>(str), len);
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127 str[len] = 0x00;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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128 std::string ret = str;
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129 delete [] str;
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130 return ret;
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131 }
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132
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133 void RawData::read(std::string& outbuffer, int size) {
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134 if ((size < 0) || ((size + m_index_current + 1) > getDataLength())) {
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135 size = getDataLength() - m_index_current - 1;
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136 }
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137 if (size == 0) {
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138 outbuffer = "";
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139 return;
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140 }
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141 uint8_t* array = new uint8_t[size + 1];
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142 m_datasource->readInto(array, m_index_current, size);
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143 array[size] = 0x00;
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144 outbuffer = reinterpret_cast<char*>(array);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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145 delete[] array;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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146 m_index_current += size;
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147 }
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148
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149
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150 bool RawData::getLine(std::string& buffer) {
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151 if (getCurrentIndex() >= getDataLength())
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152 return false;
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153
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154 buffer = "";
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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155 char c;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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156 while (getCurrentIndex() < getDataLength() && (c = read8()) != '\n')
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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157 buffer += c;
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158
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159 return true;
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160 }
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161
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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162 bool RawData::littleEndian() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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163 static int endian = 2;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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164 if (endian == 2) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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165 uint32_t value = 0x01;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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166 endian = reinterpret_cast<uint8_t*>(&value)[0];
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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167 FL_LOG(_log, LMsg("RawData") << "we are on a " << (endian == 1 ? "little endian" : "big endian") << " machine");
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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168 }
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169
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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170 return endian == 1;
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171 }
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172
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173
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174
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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175 }//FIFE