Mercurial > octave-nkf
annotate src/oct-iostrm.h @ 12312:b10ea6efdc58 release-3-4-x ss-3-3-91
version is now 3.3.91
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 31 Jan 2011 08:36:58 -0500 |
| parents | fd0a3ac60b0e |
| children | 72c96de7a403 |
| rev | line source |
|---|---|
| 2081 | 1 /* |
| 2 | |
| 11523 | 3 Copyright (C) 1996-2011 John W. Eaton |
| 2081 | 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. | |
| 2081 | 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/>. | |
| 2081 | 20 |
| 21 */ | |
| 22 | |
| 23 #if !defined (octave_octave_iostream_h) | |
| 24 #define octave_octave_iostream_h 1 | |
| 25 | |
|
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d865363208d6
include <iosfwd> instead of <iostream> in header files
John W. Eaton <jwe@octave.org>
parents:
7017
diff
changeset
|
26 #include <iosfwd> |
| 2877 | 27 |
| 2081 | 28 #include "oct-stream.h" |
| 29 | |
| 30 class | |
| 31 octave_base_iostream : public octave_base_stream | |
| 32 { | |
| 33 public: | |
| 34 | |
| 3523 | 35 octave_base_iostream (const std::string& n = std::string (), |
| 10313 | 36 std::ios::openmode m = std::ios::in|std::ios::out, |
| 37 oct_mach_info::float_format ff | |
| 38 = oct_mach_info::native_float_format ()) | |
| 4587 | 39 : octave_base_stream (m, ff), nm (n) { } |
| 2081 | 40 |
| 41 // Position a stream at OFFSET relative to ORIGIN. | |
| 42 | |
| 4797 | 43 int seek (long offset, int origin); |
| 2081 | 44 |
| 45 // Return current stream position. | |
| 46 | |
| 4797 | 47 long tell (void); |
| 2081 | 48 |
| 49 // Return non-zero if EOF has been reached on this stream. | |
| 50 | |
| 51 bool eof (void) const; | |
| 52 | |
| 53 // The name of the file. | |
| 54 | |
| 3523 | 55 std::string name (void) const { return nm; } |
| 2081 | 56 |
| 57 protected: | |
| 58 | |
| 3340 | 59 ~octave_base_iostream (void) { } |
| 60 | |
| 2081 | 61 void invalid_operation (void) const; |
| 62 | |
| 63 private: | |
| 64 | |
| 3523 | 65 std::string nm; |
| 2081 | 66 |
| 67 virtual const char *stream_type (void) const = 0; | |
| 68 | |
| 69 // No copying! | |
| 70 | |
| 71 octave_base_iostream (const octave_base_iostream&); | |
| 72 | |
| 73 octave_base_iostream& operator = (const octave_base_iostream&); | |
| 74 }; | |
| 75 | |
| 76 class | |
| 77 octave_istream : public octave_base_iostream | |
| 78 { | |
| 79 public: | |
| 80 | |
| 4587 | 81 octave_istream (std::istream *arg = 0, const std::string& n = std::string ()) |
| 5015 | 82 : octave_base_iostream (n, std::ios::in, |
| 10313 | 83 oct_mach_info::native_float_format ()), |
| 5015 | 84 is (arg) |
| 85 { } | |
| 2081 | 86 |
| 3340 | 87 static octave_stream |
| 4587 | 88 create (std::istream *arg = 0, const std::string& n = std::string ()); |
| 2081 | 89 |
| 3342 | 90 // Return non-zero if EOF has been reached on this stream. |
| 91 | |
| 92 bool eof (void) const; | |
| 93 | |
| 3523 | 94 std::istream *input_stream (void) { return is; } |
| 2081 | 95 |
| 3523 | 96 std::ostream *output_stream (void) { return 0; } |
| 2081 | 97 |
| 3340 | 98 protected: |
| 99 | |
| 100 ~octave_istream (void) { } | |
| 101 | |
| 2081 | 102 private: |
| 103 | |
| 3523 | 104 std::istream *is; |
| 2081 | 105 |
| 106 const char *stream_type (void) const { return "octave_istream"; } | |
| 107 | |
| 108 // No copying! | |
| 109 | |
| 110 octave_istream (const octave_istream&); | |
| 111 | |
| 112 octave_istream& operator = (const octave_istream&); | |
| 113 }; | |
| 114 | |
| 115 class | |
| 116 octave_ostream : public octave_base_iostream | |
| 117 { | |
| 118 public: | |
| 119 | |
| 4587 | 120 octave_ostream (std::ostream *arg, const std::string& n = std::string ()) |
| 5015 | 121 : octave_base_iostream (n, std::ios::out, |
| 10313 | 122 oct_mach_info::native_float_format ()), |
| 5015 | 123 os (arg) |
| 124 { } | |
| 2081 | 125 |
| 3340 | 126 static octave_stream |
| 4587 | 127 create (std::ostream *arg, const std::string& n = std::string ()); |
| 2081 | 128 |
| 3342 | 129 // Return non-zero if EOF has been reached on this stream. |
| 130 | |
| 131 bool eof (void) const; | |
| 132 | |
| 3523 | 133 std::istream *input_stream (void) { return 0; } |
| 2081 | 134 |
| 3523 | 135 std::ostream *output_stream (void) { return os; } |
| 2081 | 136 |
| 3340 | 137 protected: |
| 138 | |
| 139 ~octave_ostream (void) { } | |
| 140 | |
| 2081 | 141 private: |
| 142 | |
| 3523 | 143 std::ostream *os; |
| 2081 | 144 |
| 145 const char *stream_type (void) const { return "octave_ostream"; } | |
| 146 | |
| 147 // No copying! | |
| 148 | |
| 149 octave_ostream (const octave_ostream&); | |
| 150 | |
| 151 octave_ostream& operator = (const octave_ostream&); | |
| 152 }; | |
| 153 | |
| 154 #endif |