Mercurial > hg > octave-nkf
annotate src/oct-fstrm.cc @ 11118:d517388b1c41
Added tag ss-3-3-53 for changeset 6c69a7c39039
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 19 Oct 2010 02:25:45 -0400 |
| parents | bbe99b2a5ba7 |
| children | fd0a3ac60b0e |
| rev | line source |
|---|---|
| 2081 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2007 |
| 4 John W. Eaton | |
| 2081 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2081 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2081 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 28 #include <cerrno> | |
|
10463
bbe99b2a5ba7
undo recent gnulib-related changes
John W. Eaton <jwe@octave.org>
parents:
10447
diff
changeset
|
29 #include <cstring> |
| 2081 | 30 |
| 31 #include "error.h" | |
| 32 #include "oct-fstrm.h" | |
| 33 | |
| 3340 | 34 octave_stream |
| 3570 | 35 octave_fstream::create (const std::string& nm_arg, std::ios::openmode arg_md, |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
36 oct_mach_info::float_format ff) |
| 3340 | 37 { |
| 4587 | 38 return octave_stream (new octave_fstream (nm_arg, arg_md, ff)); |
| 3340 | 39 } |
| 40 | |
| 3552 | 41 octave_fstream::octave_fstream (const std::string& nm_arg, |
|
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
42 std::ios::openmode arg_md, |
|
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
43 oct_mach_info::float_format ff) |
| 4587 | 44 : octave_base_stream (arg_md, ff), nm (nm_arg) |
| 2081 | 45 { |
| 3775 | 46 |
| 47 #if CXX_ISO_COMPLIANT_LIBRARY | |
| 48 | |
| 49 fs.open (nm.c_str (), arg_md); | |
| 50 | |
| 51 #else | |
| 2081 | 52 // Override default protection of 0664 so that umask will appear to |
| 53 // do the right thing. | |
| 54 | |
| 3570 | 55 fs.open (nm.c_str (), arg_md, 0666); |
| 2081 | 56 |
| 3775 | 57 #endif |
| 58 | |
| 2081 | 59 if (! fs) |
| 10411 | 60 error (gnulib::strerror (errno)); |
| 2081 | 61 } |
| 62 | |
| 63 // Position a stream at OFFSET relative to ORIGIN. | |
| 64 | |
| 65 int | |
| 4797 | 66 octave_fstream::seek (long, int) |
| 2081 | 67 { |
| 4797 | 68 error ("fseek: invalid_operation"); |
| 69 return -1; | |
| 2081 | 70 } |
| 71 | |
| 72 // Return current stream position. | |
| 73 | |
| 4797 | 74 long |
| 75 octave_fstream::tell (void) | |
| 2081 | 76 { |
| 4797 | 77 error ("ftell: invalid_operation"); |
| 78 return -1; | |
| 2081 | 79 } |
| 80 | |
| 81 // Return non-zero if EOF has been reached on this stream. | |
| 82 | |
| 83 bool | |
| 84 octave_fstream::eof (void) const | |
| 85 { | |
| 86 return fs.eof (); | |
| 87 } | |
| 88 | |
| 3652 | 89 void |
| 90 octave_fstream::do_close (void) | |
| 91 { | |
| 92 fs.close (); | |
| 93 } | |
| 94 | |
| 3523 | 95 std::istream * |
| 2081 | 96 octave_fstream::input_stream (void) |
| 97 { | |
| 3523 | 98 std::istream *retval = 0; |
| 2081 | 99 |
| 3544 | 100 if (mode () & std::ios::in) |
| 2081 | 101 retval = &fs; |
| 102 | |
| 103 return retval; | |
| 104 } | |
| 105 | |
| 3523 | 106 std::ostream * |
| 2081 | 107 octave_fstream::output_stream (void) |
| 108 { | |
| 3523 | 109 std::ostream *retval = 0; |
| 2081 | 110 |
| 3544 | 111 if (mode () & std::ios::out) |
| 2081 | 112 retval = &fs; |
| 113 | |
| 114 return retval; | |
| 115 } |