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annotate libinterp/corefcn/oct-strstrm.h @ 29358:0a5b15007766 stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021.
author John W. Eaton <jwe@octave.org>
date Wed, 10 Feb 2021 09:52:15 -0500
parents bd51beb6205e
children 3988112c7116
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_oct_strstrm_h)
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27 #define octave_oct_strstrm_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <string>
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32 #include <sstream>
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33
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34 #include "oct-stream.h"
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35
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36 class
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37 octave_base_strstream : public octave::base_stream
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38 {
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39 public:
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40
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41 octave_base_strstream (std::ios::openmode m = std::ios::out,
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42 octave::mach_info::float_format ff
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43 = octave::mach_info::native_float_format (),
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44 const std::string& encoding = "utf-8")
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45 : octave::base_stream (m, ff, encoding) { }
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46
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47 // No copying!
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48
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49 octave_base_strstream (const octave_base_strstream&) = delete;
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50
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51 octave_base_strstream& operator = (const octave_base_strstream&) = delete;
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52
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53 protected:
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54
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55 ~octave_base_strstream (void) = default;
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56
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57 public:
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58
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59 // Position a stream at OFFSET relative to ORIGIN.
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60
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61 int seek (off_t, int);
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62
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63 // Return current stream position.
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64
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65 virtual off_t tell (void);
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66
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67 // The name of the file.
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68
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69 std::string name (void) const { return ""; }
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70
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71 virtual std::streambuf * rdbuf (void) = 0;
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72
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73 virtual bool bad (void) const = 0;
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74
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75 virtual void clear (void) = 0;
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76 };
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77
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78 class
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79 octave_istrstream : public octave_base_strstream
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80 {
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81 public:
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82
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83 octave_istrstream (const char *data,
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84 std::ios::openmode arg_md = std::ios::out,
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85 octave::mach_info::float_format ff
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86 = octave::mach_info::native_float_format (),
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87 const std::string& encoding = "utf-8")
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88 : octave_base_strstream (arg_md, ff, encoding), m_istream (data) { }
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89
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90 octave_istrstream (const std::string& data,
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91 std::ios::openmode arg_md = std::ios::out,
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92 octave::mach_info::float_format ff
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93 = octave::mach_info::native_float_format (),
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94 const std::string& encoding = "utf-8")
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95 : octave_base_strstream (arg_md, ff, encoding), m_istream (data) { }
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96
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97 // No copying!
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98
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99 octave_istrstream (const octave_istrstream&) = delete;
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100
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101 octave_istrstream& operator = (const octave_istrstream&) = delete;
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102
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103 protected:
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104
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105 ~octave_istrstream (void) = default;
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106
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107 public:
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108
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109
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110 static octave::stream
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111 create (const char *data, std::ios::openmode arg_md = std::ios::out,
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112 octave::mach_info::float_format ff
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113 = octave::mach_info::native_float_format (),
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114 const std::string& encoding = "utf-8");
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115
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116 static octave::stream
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117 create (const std::string& data, std::ios::openmode arg_md = std::ios::out,
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118 octave::mach_info::float_format ff
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119 = octave::mach_info::native_float_format (),
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120 const std::string& encoding = "utf-8");
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121
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122 // Return nonzero if EOF has been reached on this stream.
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123
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124 bool eof (void) const { return m_istream.eof (); }
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125
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126 std::istream * input_stream (void) { return &m_istream; }
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127
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128 std::ostream * output_stream (void) { return nullptr; }
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129
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130 off_t tell (void) { return m_istream.tellg (); }
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131
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132 std::streambuf * rdbuf (void)
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133 {
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134 return m_istream ? m_istream.rdbuf () : nullptr;
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135 }
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136
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137 bool bad (void) const { return m_istream.bad (); }
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138
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139 void clear (void) { m_istream.clear (); }
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140
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141 private:
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142
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143 std::istringstream m_istream;
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144 };
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145
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146 class
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147 octave_ostrstream : public octave_base_strstream
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148 {
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149 public:
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150
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151 octave_ostrstream (std::ios::openmode arg_md = std::ios::out,
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152 octave::mach_info::float_format ff
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153 = octave::mach_info::native_float_format (),
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154 const std::string& encoding = "utf-8")
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155 : octave_base_strstream (arg_md, ff, encoding), m_ostream () { }
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156
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157 // No copying!
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158
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159 octave_ostrstream (const octave_ostrstream&) = delete;
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160
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161 octave_ostrstream& operator = (const octave_ostrstream&) = delete;
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162
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163 protected:
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164
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165 ~octave_ostrstream (void) = default;
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166
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167 public:
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168
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169 static octave::stream
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170 create (std::ios::openmode arg_md = std::ios::out,
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171 octave::mach_info::float_format ff
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172 = octave::mach_info::native_float_format (),
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173 const std::string& encoding = "utf-8");
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174
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175 // Return nonzero if EOF has been reached on this stream.
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176
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177 bool eof (void) const { return m_ostream.eof (); }
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178
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179 std::istream * input_stream (void) { return nullptr; }
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180
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181 std::ostream * output_stream (void) { return &m_ostream; }
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182
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183 std::string str (void) { return m_ostream.str (); }
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184
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185 std::streambuf * rdbuf (void)
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186 {
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187 return m_ostream ? m_ostream.rdbuf () : nullptr;
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188 }
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189
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190 bool bad (void) const { return m_ostream.bad (); }
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191
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192 void clear (void) { m_ostream.clear (); }
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193
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194 private:
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195
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196 std::ostringstream m_ostream;
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197 };
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198
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199 #endif