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annotate libinterp/corefcn/oct-strstrm.h @ 30564:796f54d4ddbf 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. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 3988112c7116
children 2aa5bcaba504 e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2022 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 OCTAVE_NAMESPACE_BEGIN
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37
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38 class
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39 base_strstream : public base_stream
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40 {
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41 public:
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42
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43 base_strstream (std::ios::openmode m = std::ios::out,
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44 mach_info::float_format ff
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45 = mach_info::native_float_format (),
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46 const std::string& encoding = "utf-8")
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47 : base_stream (m, ff, encoding) { }
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48
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49 // No copying!
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50
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51 base_strstream (const base_strstream&) = delete;
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52
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53 base_strstream& operator = (const base_strstream&) = delete;
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54
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55 protected:
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56
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57 ~base_strstream (void) = default;
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58
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59 public:
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60
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61 // Position a stream at OFFSET relative to ORIGIN.
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62
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63 int seek (off_t, int);
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64
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65 // Return current stream position.
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66
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67 virtual off_t tell (void);
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68
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69 // The name of the file.
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70
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71 std::string name (void) const { return ""; }
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72
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73 virtual std::streambuf * rdbuf (void) = 0;
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74
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75 virtual bool bad (void) const = 0;
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76
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77 virtual void clear (void) = 0;
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78 };
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79
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80 class
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81 istrstream : public base_strstream
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82 {
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83 public:
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84
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85 istrstream (const char *data,
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86 std::ios::openmode arg_md = std::ios::out,
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87 mach_info::float_format ff = mach_info::native_float_format (),
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88 const std::string& encoding = "utf-8")
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89 : base_strstream (arg_md, ff, encoding), m_istream (data) { }
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90
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91 istrstream (const std::string& data,
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92 std::ios::openmode arg_md = std::ios::out,
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93 mach_info::float_format ff = mach_info::native_float_format (),
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94 const std::string& encoding = "utf-8")
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95 : 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 istrstream (const istrstream&) = delete;
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100
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101 istrstream& operator = (const istrstream&) = delete;
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102
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103 protected:
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104
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105 ~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 stream
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111 create (const char *data, std::ios::openmode arg_md = std::ios::out,
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112 mach_info::float_format ff = mach_info::native_float_format (),
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113 const std::string& encoding = "utf-8");
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114
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115 static stream
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116 create (const std::string& data, std::ios::openmode arg_md = std::ios::out,
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117 mach_info::float_format ff = mach_info::native_float_format (),
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118 const std::string& encoding = "utf-8");
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119
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120 // Return nonzero if EOF has been reached on this stream.
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121
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122 bool eof (void) const { return m_istream.eof (); }
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123
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124 std::istream * input_stream (void) { return &m_istream; }
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125
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126 std::ostream * output_stream (void) { return nullptr; }
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127
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128 off_t tell (void) { return m_istream.tellg (); }
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129
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130 std::streambuf * rdbuf (void)
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131 {
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132 return m_istream ? m_istream.rdbuf () : nullptr;
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133 }
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134
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135 bool bad (void) const { return m_istream.bad (); }
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136
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137 void clear (void) { m_istream.clear (); }
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138
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139 private:
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140
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141 std::istringstream m_istream;
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142 };
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143
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144 class
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145 ostrstream : public base_strstream
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146 {
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147 public:
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148
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149 ostrstream (std::ios::openmode arg_md = std::ios::out,
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150 mach_info::float_format ff = mach_info::native_float_format (),
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151 const std::string& encoding = "utf-8")
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152 : base_strstream (arg_md, ff, encoding), m_ostream () { }
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153
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154 // No copying!
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155
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156 ostrstream (const ostrstream&) = delete;
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157
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158 ostrstream& operator = (const ostrstream&) = delete;
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159
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160 protected:
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161
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162 ~ostrstream (void) = default;
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163
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164 public:
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165
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166 static stream
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167 create (std::ios::openmode arg_md = std::ios::out,
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168 mach_info::float_format ff = mach_info::native_float_format (),
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169 const std::string& encoding = "utf-8");
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170
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171 // Return nonzero if EOF has been reached on this stream.
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172
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173 bool eof (void) const { return m_ostream.eof (); }
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174
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175 std::istream * input_stream (void) { return nullptr; }
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176
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177 std::ostream * output_stream (void) { return &m_ostream; }
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178
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179 std::string str (void) { return m_ostream.str (); }
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180
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181 std::streambuf * rdbuf (void)
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182 {
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183 return m_ostream ? m_ostream.rdbuf () : nullptr;
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184 }
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185
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186 bool bad (void) const { return m_ostream.bad (); }
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187
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188 void clear (void) { m_ostream.clear (); }
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189
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190 private:
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191
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192 std::ostringstream m_ostream;
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193 };
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194
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195 OCTAVE_NAMESPACE_END
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196
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197 #if defined (OCTAVE_PROVIDE_DEPRECATED_SYMBOLS)
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198
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199 OCTAVE_DEPRECATED (7, "use 'octave::base_strstream' instead")
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200 typedef octave::base_strstream octave_base_strstream;
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201
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202 OCTAVE_DEPRECATED (7, "use 'octave::istrstream' instead")
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203 typedef octave::istrstream octave_istrstream;
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204
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205 OCTAVE_DEPRECATED (7, "use 'octave::ostrstream' instead")
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206 typedef octave::ostrstream octave_ostrstream;
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207
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208 #endif
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209
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210 #endif