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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include "oct-strstrm.h" |
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28 |
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29 // Position a stream at OFFSET relative to ORIGIN. |
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30 |
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31 int |
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32 octave_base_strstream::seek (streamoff offset, ios::seek_dir origin) |
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33 { |
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34 int retval = -1; |
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35 |
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36 if (! bad ()) |
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37 { |
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38 streambuf *sb = rdbuf (); |
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39 |
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40 if (sb) |
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41 { |
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42 clear (); |
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43 |
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44 sb->seekoff (offset, origin); |
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45 retval = bad () ? -1 : 0; |
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46 } |
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47 } |
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48 |
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49 return retval; |
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50 } |
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51 |
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52 // Return current stream position. |
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53 |
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54 long |
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55 octave_base_strstream::tell (void) const |
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56 { |
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57 long retval = -1; |
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58 |
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59 if (! bad ()) |
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60 { |
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61 // XXX FIXME XXX -- shouldn't have to do this! |
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62 |
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63 streambuf *sb = (const_cast<octave_base_strstream *>(this))->rdbuf (); |
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64 |
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65 if (sb) |
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66 { |
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67 retval = static_cast<long> (sb->seekoff (0, ios::cur)); |
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68 |
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69 if (bad ()) |
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70 retval = -1; |
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71 } |
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72 } |
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73 |
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74 return retval; |
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75 } |
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76 |
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77 octave_stream |
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78 octave_istrstream::create (const char *data, ios::openmode arg_md, |
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79 oct_mach_info::float_format flt_fmt) |
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80 { |
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81 return octave_stream (new octave_istrstream (data, arg_md, flt_fmt)); |
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82 } |
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83 |
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84 octave_stream |
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85 octave_istrstream::create (const string& data, ios::openmode arg_md, |
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86 oct_mach_info::float_format flt_fmt) |
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87 { |
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88 return octave_stream (new octave_istrstream (data, arg_md, flt_fmt)); |
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89 } |
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90 |
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91 octave_stream |
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92 octave_ostrstream::create (ios::openmode arg_md, |
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93 oct_mach_info::float_format flt_fmt) |
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94 { |
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95 return octave_stream (new octave_ostrstream (arg_md, flt_fmt)); |
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96 } |
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97 |
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98 /* |
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99 ;;; Local Variables: *** |
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100 ;;; mode: C++ *** |
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101 ;;; End: *** |
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102 */ |
