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comparison src/zfstream.cc @ 11586:12df7854fa7c

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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 72c96de7a403
comparison
equal deleted inserted replaced
11585:1473d0cf86d2 11586:12df7854fa7c
1 /* 1 /*
2 2
3 Copyright (C) 2005-2011 Ludwig Schwardt, Kevin Ruland 3 Copyright (C) 2005-2011 Ludwig Schwardt, Kevin Ruland
4 4
5 5
6 This file is part of Octave. 6 This file is part of Octave.
7 7
8 Octave is free software; you can redistribute it and/or modify it 8 Octave is free software; you can redistribute it and/or modify it
44 #include <cstring> // for strcpy, strcat, strlen (mode strings) 44 #include <cstring> // for strcpy, strcat, strlen (mode strings)
45 #include <cstdio> // for BUFSIZ 45 #include <cstdio> // for BUFSIZ
46 46
47 // Internal buffer sizes (default and "unbuffered" versions) 47 // Internal buffer sizes (default and "unbuffered" versions)
48 #define STASHED_CHARACTERS 16 48 #define STASHED_CHARACTERS 16
49 #define BIGBUFSIZE (256 * 1024 + STASHED_CHARACTERS) 49 #define BIGBUFSIZE (256 * 1024 + STASHED_CHARACTERS)
50 #define SMALLBUFSIZE 1 50 #define SMALLBUFSIZE 1
51 51
52 /*****************************************************************************/ 52 /*****************************************************************************/
53 53
54 // Default constructor 54 // Default constructor
214 return 0; 214 return 0;
215 } 215 }
216 216
217 // Puts back a character to the stream in two cases. Firstly, when there 217 // Puts back a character to the stream in two cases. Firstly, when there
218 // is no putback position available, and secondly when the character putback 218 // is no putback position available, and secondly when the character putback
219 // differs from the one in the file. We can only support the first case 219 // differs from the one in the file. We can only support the first case
220 // with gzipped files. 220 // with gzipped files.
221 gzfilebuf::int_type 221 gzfilebuf::int_type
222 gzfilebuf::pbackfail (gzfilebuf::int_type c) 222 gzfilebuf::pbackfail (gzfilebuf::int_type c)
223 { 223 {
224 if (this->is_open()) 224 if (this->is_open())
225 { 225 {
226 if (gzseek (file, this->gptr() - this->egptr() - 1, SEEK_CUR) < 0) 226 if (gzseek (file, this->gptr() - this->egptr() - 1, SEEK_CUR) < 0)
227 return traits_type::eof(); 227 return traits_type::eof();
228 228
229 // Invalidates contents of the buffer 229 // Invalidates contents of the buffer
230 enable_buffer (); 230 enable_buffer ();
231 231
232 // Attempt to fill internal buffer from gzipped file 232 // Attempt to fill internal buffer from gzipped file
233 // (buffer must be guaranteed to exist...) 233 // (buffer must be guaranteed to exist...)
459 459
460 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 460 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
461 461
462 // Seek functions 462 // Seek functions
463 gzfilebuf::pos_type 463 gzfilebuf::pos_type
464 gzfilebuf::seekoff(off_type off, std::ios_base::seekdir way, 464 gzfilebuf::seekoff(off_type off, std::ios_base::seekdir way,
465 std::ios_base::openmode) 465 std::ios_base::openmode)
466 { 466 {
467 pos_type ret = pos_type (off_type (-1)); 467 pos_type ret = pos_type (off_type (-1));
468 468
469 if (this->is_open()) 469 if (this->is_open())
478 else if (way == std::ios_base::cur) 478 else if (way == std::ios_base::cur)
479 ret = pos_type (gzseek (file, computed_off, SEEK_CUR)); 479 ret = pos_type (gzseek (file, computed_off, SEEK_CUR));
480 else 480 else
481 // Can't seek from end of a gzipped file, so this will give -1 481 // Can't seek from end of a gzipped file, so this will give -1
482 ret = pos_type (gzseek (file, computed_off, SEEK_END)); 482 ret = pos_type (gzseek (file, computed_off, SEEK_END));
483 483
484 if (io_mode & std::ios_base::in) 484 if (io_mode & std::ios_base::in)
485 // Invalidates contents of the buffer 485 // Invalidates contents of the buffer
486 enable_buffer (); 486 enable_buffer ();
487 else 487 else
488 // flush contents of buffer to file 488 // flush contents of buffer to file