Mercurial > octave-nkf
annotate src/c-file-ptr-stream.cc @ 11586:12df7854fa7c
strip trailing whitespace from source files
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 20 Jan 2011 17:24:59 -0500 |
| parents | fd0a3ac60b0e |
| children | e116dd862879 |
| rev | line source |
|---|---|
| 3628 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 2000-2011 John W. Eaton |
| 3628 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 3628 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 3628 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
|
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27 #include <iostream> |
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28 |
| 3629 | 29 #include "c-file-ptr-stream.h" |
| 3628 | 30 |
| 31 #ifndef SEEK_SET | |
| 32 #define SEEK_SET 0 | |
| 33 #endif | |
| 34 | |
| 35 #ifndef SEEK_CUR | |
| 36 #define SEEK_CUR 1 | |
| 37 #endif | |
| 38 | |
| 39 #ifndef SEEK_END | |
| 40 #define SEEK_END 2 | |
| 41 #endif | |
| 42 | |
| 3642 | 43 c_file_ptr_buf::~c_file_ptr_buf (void) |
| 44 { | |
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45 buf_close (); |
| 3642 | 46 } |
| 3628 | 47 |
| 5775 | 48 // FIXME -- I'm sure there is room for improvement here... |
| 3628 | 49 |
| 3775 | 50 c_file_ptr_buf::int_type |
| 51 c_file_ptr_buf::overflow (int_type c) | |
| 3628 | 52 { |
| 3775 | 53 #if defined (CXX_ISO_COMPLIANT_LIBRARY) |
| 54 if (f) | |
| 10411 | 55 return (c != traits_type::eof ()) ? gnulib::fputc (c, f) : flush (); |
| 3775 | 56 else |
| 57 return traits_type::not_eof (c); | |
| 58 #else | |
| 3644 | 59 if (f) |
| 10411 | 60 return (c != EOF) ? gnulib::fputc (c, f) : flush (); |
| 3644 | 61 else |
| 62 return EOF; | |
| 3775 | 63 #endif |
| 3628 | 64 } |
| 65 | |
| 3775 | 66 c_file_ptr_buf::int_type |
| 4310 | 67 c_file_ptr_buf::underflow_common (bool bump) |
| 3628 | 68 { |
| 3644 | 69 if (f) |
| 4310 | 70 { |
| 71 int_type c = fgetc (f); | |
| 72 | |
| 73 if (! bump | |
| 74 #if defined (CXX_ISO_COMPLIANT_LIBRARY) | |
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75 && c != traits_type::eof ()) |
| 4310 | 76 #else |
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77 && c != EOF) |
| 4310 | 78 #endif |
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79 ungetc (c, f); |
| 4310 | 80 |
| 81 return c; | |
| 82 } | |
| 3644 | 83 else |
| 3775 | 84 #if defined (CXX_ISO_COMPLIANT_LIBRARY) |
| 85 return traits_type::eof (); | |
| 86 #else | |
| 3644 | 87 return EOF; |
| 3775 | 88 #endif |
| 3628 | 89 } |
| 90 | |
| 3775 | 91 c_file_ptr_buf::int_type |
| 92 c_file_ptr_buf::pbackfail (int_type c) | |
| 3628 | 93 { |
| 3775 | 94 #if defined (CXX_ISO_COMPLIANT_LIBRARY) |
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95 return (c != traits_type::eof () && f) ? ungetc (c, f) : |
| 3775 | 96 traits_type::not_eof (c); |
| 97 #else | |
| 3644 | 98 return (c != EOF && f) ? ungetc (c, f) : EOF; |
| 3775 | 99 #endif |
| 3628 | 100 } |
| 101 | |
| 102 std::streamsize | |
| 103 c_file_ptr_buf::xsputn (const char* s, std::streamsize n) | |
| 104 { | |
| 3644 | 105 if (f) |
| 10411 | 106 return gnulib::fwrite (s, 1, n, f); |
| 3644 | 107 else |
| 108 return 0; | |
| 3628 | 109 } |
| 110 | |
| 111 std::streamsize | |
| 112 c_file_ptr_buf::xsgetn (char *s, std::streamsize n) | |
| 113 { | |
| 3644 | 114 if (f) |
| 115 return fread (s, 1, n, f); | |
| 116 else | |
| 117 return 0; | |
| 3628 | 118 } |
| 119 | |
| 120 static inline int | |
| 121 seekdir_to_whence (std::ios::seekdir dir) | |
| 122 { | |
| 123 return ((dir == std::ios::beg) ? SEEK_SET : | |
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124 (dir == std::ios::cur) ? SEEK_CUR : |
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125 (dir == std::ios::end) ? SEEK_END : |
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126 dir); |
| 3628 | 127 } |
| 128 | |
| 129 std::streampos | |
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130 c_file_ptr_buf::seekoff (std::streamoff /* offset */, |
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131 std::ios::seekdir /* dir */, |
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132 std::ios::openmode) |
| 3628 | 133 { |
| 5775 | 134 // FIXME |
| 4643 | 135 #if 0 |
| 3644 | 136 if (f) |
| 137 { | |
| 138 fseek (f, offset, seekdir_to_whence (dir)); | |
| 3628 | 139 |
| 3644 | 140 return ftell (f); |
| 141 } | |
| 142 else | |
| 143 return 0; | |
| 4643 | 144 #endif |
| 145 return -1; | |
| 3628 | 146 } |
| 147 | |
| 148 std::streampos | |
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149 c_file_ptr_buf::seekpos (std::streampos /* offset */, std::ios::openmode) |
| 3628 | 150 { |
| 5775 | 151 // FIXME |
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152 #if 0 |
| 3644 | 153 if (f) |
| 154 { | |
| 155 fseek (f, offset, SEEK_SET); | |
| 3628 | 156 |
| 3644 | 157 return ftell (f); |
| 158 } | |
| 159 else | |
| 160 return 0; | |
| 4643 | 161 #endif |
| 162 return -1; | |
| 3628 | 163 } |
| 164 | |
| 165 int | |
| 166 c_file_ptr_buf::sync (void) | |
| 167 { | |
| 3652 | 168 flush (); |
| 169 | |
| 3628 | 170 return 0; |
| 171 } | |
| 172 | |
| 3652 | 173 int |
| 174 c_file_ptr_buf::flush (void) | |
| 175 { | |
| 176 return f ? fflush (f) : EOF; | |
| 177 } | |
| 178 | |
| 179 int | |
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180 c_file_ptr_buf::buf_close (void) |
| 3652 | 181 { |
| 3693 | 182 int retval = -1; |
| 183 | |
| 3716 | 184 flush (); |
| 185 | |
| 3652 | 186 if (f) |
| 3693 | 187 { |
| 3716 | 188 retval = cf (f); |
| 3693 | 189 f = 0; |
| 190 } | |
| 191 | |
| 192 return retval; | |
| 3652 | 193 } |
| 194 | |
| 10411 | 195 int |
| 196 c_file_ptr_buf::file_close (FILE *f) | |
| 197 { | |
| 198 return gnulib::fclose (f); | |
| 199 } | |
| 200 | |
| 5325 | 201 #ifdef HAVE_ZLIB |
| 202 | |
| 203 c_zfile_ptr_buf::~c_zfile_ptr_buf (void) | |
| 204 { | |
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205 buf_close (); |
| 5325 | 206 } |
| 207 | |
| 5775 | 208 // FIXME -- I'm sure there is room for improvement here... |
| 5325 | 209 |
| 210 c_zfile_ptr_buf::int_type | |
| 211 c_zfile_ptr_buf::overflow (int_type c) | |
| 212 { | |
| 213 #if defined (CXX_ISO_COMPLIANT_LIBRARY) | |
| 214 if (f) | |
| 215 return (c != traits_type::eof ()) ? gzputc (f, c) : flush (); | |
| 216 else | |
| 217 return traits_type::not_eof (c); | |
| 218 #else | |
| 219 if (f) | |
| 220 return (c != EOF) ? gzputc (f, c) : flush (); | |
| 221 else | |
| 222 return EOF; | |
| 223 #endif | |
| 224 } | |
| 225 | |
| 226 c_zfile_ptr_buf::int_type | |
| 227 c_zfile_ptr_buf::underflow_common (bool bump) | |
| 228 { | |
| 229 if (f) | |
| 230 { | |
| 231 int_type c = gzgetc (f); | |
| 232 | |
| 233 if (! bump | |
| 234 #if defined (CXX_ISO_COMPLIANT_LIBRARY) | |
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235 && c != traits_type::eof ()) |
| 5325 | 236 #else |
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237 && c != EOF) |
| 5325 | 238 #endif |
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239 gzungetc (c, f); |
| 5325 | 240 |
| 241 return c; | |
| 242 } | |
| 243 else | |
| 244 #if defined (CXX_ISO_COMPLIANT_LIBRARY) | |
| 245 return traits_type::eof (); | |
| 246 #else | |
| 247 return EOF; | |
| 248 #endif | |
| 249 } | |
| 250 | |
| 251 c_zfile_ptr_buf::int_type | |
| 252 c_zfile_ptr_buf::pbackfail (int_type c) | |
| 253 { | |
| 254 #if defined (CXX_ISO_COMPLIANT_LIBRARY) | |
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255 return (c != traits_type::eof () && f) ? gzungetc (c, f) : |
| 5325 | 256 traits_type::not_eof (c); |
| 257 #else | |
| 258 return (c != EOF && f) ? gzungetc (c, f) : EOF; | |
| 259 #endif | |
| 260 } | |
| 261 | |
| 262 std::streamsize | |
| 263 c_zfile_ptr_buf::xsputn (const char* s, std::streamsize n) | |
| 264 { | |
| 265 if (f) | |
| 266 return gzwrite (f, s, n); | |
| 267 else | |
| 268 return 0; | |
| 269 } | |
| 270 | |
| 271 std::streamsize | |
| 272 c_zfile_ptr_buf::xsgetn (char *s, std::streamsize n) | |
| 273 { | |
| 274 if (f) | |
| 275 return gzread (f, s, n); | |
| 276 else | |
| 277 return 0; | |
| 278 } | |
| 279 | |
| 280 std::streampos | |
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281 c_zfile_ptr_buf::seekoff (std::streamoff /* offset */, |
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282 std::ios::seekdir /* dir */, |
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283 std::ios::openmode) |
| 5325 | 284 { |
| 5775 | 285 // FIXME |
| 5325 | 286 #if 0 |
| 287 if (f) | |
| 288 { | |
| 289 gzseek (f, offset, seekdir_to_whence (dir)); | |
| 290 | |
| 291 return gztell (f); | |
| 292 } | |
| 293 else | |
| 294 return 0; | |
| 295 #endif | |
| 296 return -1; | |
| 297 } | |
| 298 | |
| 299 std::streampos | |
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300 c_zfile_ptr_buf::seekpos (std::streampos /* offset */, std::ios::openmode) |
| 5325 | 301 { |
| 5775 | 302 // FIXME |
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303 #if 0 |
| 5325 | 304 if (f) |
| 305 { | |
| 306 gzseek (f, offset, SEEK_SET); | |
| 307 | |
| 308 return gztell (f); | |
| 309 } | |
| 310 else | |
| 311 return 0; | |
| 312 #endif | |
| 313 return -1; | |
| 314 } | |
| 315 | |
| 316 int | |
| 317 c_zfile_ptr_buf::sync (void) | |
| 318 { | |
| 319 flush (); | |
| 320 | |
| 321 return 0; | |
| 322 } | |
| 323 | |
| 324 int | |
| 325 c_zfile_ptr_buf::flush (void) | |
| 326 { | |
| 5775 | 327 // FIXME -- do we need something more complex here, passing |
| 5325 | 328 // something other than 0 for the second argument to gzflush and |
| 329 // checking the return value, etc.? | |
| 330 | |
| 331 return f ? gzflush (f, 0) : EOF; | |
| 332 } | |
| 333 | |
| 334 int | |
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335 c_zfile_ptr_buf::buf_close (void) |
| 5325 | 336 { |
| 337 int retval = -1; | |
| 338 | |
| 339 flush (); | |
| 340 | |
| 341 if (f) | |
| 342 { | |
| 343 retval = cf (f); | |
| 344 f = 0; | |
| 345 } | |
| 346 | |
| 347 return retval; | |
| 348 } | |
| 349 | |
| 350 #endif |