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annotate libinterp/corefcn/oct-strstrm.h @ 29991:3988112c7116

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move i/o stream classes inside octave namespace * c-file-ptr-stream.h, c-file-ptr-stream.cc, file-io.cc, oct-fstrm.cc, oct-fstrm.h, oct-iostrm.cc, oct-iostrm.h, oct-prcstrm.cc, oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-strstrm.cc, oct-strstrm.h, procstream.cc, procstream.h: Move classes inside octave namespace. Change all uses. Provide deprecated typedefs to preserve old names where possible.
author John W. Eaton <jwe@octave.org>
date Tue, 17 Aug 2021 11:17:36 -0400
parents 0a5b15007766
children 796f54d4ddbf
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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 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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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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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