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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include "error.h" |
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29 #include "oct-iostrm.h" |
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30 |
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31 // Position a stream at OFFSET relative to ORIGIN. |
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32 |
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33 int |
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34 octave_base_iostream::seek (long, int) |
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35 { |
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36 invalid_operation (); |
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37 return -1; |
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38 } |
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39 |
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40 // Return current stream position. |
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41 |
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42 long |
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43 octave_base_iostream::tell (void) |
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44 { |
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45 invalid_operation (); |
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46 return -1; |
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47 } |
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48 |
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49 // Return non-zero if EOF has been reached on this stream. |
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50 |
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51 bool |
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52 octave_base_iostream::eof (void) const |
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53 { |
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54 invalid_operation (); |
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55 return false; |
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56 } |
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57 |
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58 void |
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59 octave_base_iostream::invalid_operation (void) const |
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60 { |
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61 ::error ("%s: invalid operation", stream_type ()); |
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62 } |
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63 |
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64 // Return non-zero if EOF has been reached on this stream. |
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65 |
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66 bool |
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67 octave_istream::eof (void) const |
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68 { |
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69 return is && is->eof (); |
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70 } |
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71 |
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72 octave_stream |
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73 octave_istream::create (std::istream *arg, const std::string& n) |
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74 { |
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75 return octave_stream (new octave_istream (arg, n)); |
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76 } |
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77 |
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78 // Return non-zero if EOF has been reached on this stream. |
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79 |
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80 bool |
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81 octave_ostream::eof (void) const |
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82 { |
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83 return os && os->eof (); |
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84 } |
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85 |
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86 octave_stream |
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87 octave_ostream::create (std::ostream *arg, const std::string& n) |
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88 { |
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89 return octave_stream (new octave_ostream (arg, n)); |
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90 } |
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91 |
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92 /* |
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93 ;;; Local Variables: *** |
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94 ;;; mode: C++ *** |
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95 ;;; End: *** |
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96 */ |
