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annotate liboctave/lo-utils.h @ 14704:551566201318 stable release-3-6-2

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Version 3.6.2 released. * configure.ac (AC_INIT): Version is now 3.6.2. (OCTAVE_RELEASE_DATE): Now 2012-05-31.
author John W. Eaton <jwe@octave.org>
date Thu, 31 May 2012 11:22:15 -0400
parents 72c96de7a403
children 4bbd3bbb8912
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1 /*
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2
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3 Copyright (C) 1996-2012 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 3 of the License, or (at your
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10 option) any 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, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_liboctave_utils_h)
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24 #define octave_liboctave_utils_h 1
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25
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26 #include <cstdio>
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27
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28 #include <iostream>
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29 #include <string>
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30
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31 #include "lo-cutils.h"
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32 #include "oct-cmplx.h"
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33
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34 extern OCTAVE_API bool xis_int_or_inf_or_nan (double x);
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35 extern OCTAVE_API bool xis_one_or_zero (double x);
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36 extern OCTAVE_API bool xis_zero (double x);
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37 extern OCTAVE_API bool xtoo_large_for_float (double x);
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38
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39 extern OCTAVE_API bool xis_int_or_inf_or_nan (float x);
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40 extern OCTAVE_API bool xis_one_or_zero (float x);
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41 extern OCTAVE_API bool xis_zero (float x);
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42 extern OCTAVE_API bool xtoo_large_for_float (float x);
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43
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44 extern OCTAVE_API char *strsave (const char *);
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45
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46 extern OCTAVE_API void
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47 octave_putenv (const std::string&, const std::string&);
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48
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49 extern OCTAVE_API std::string octave_fgets (std::FILE *);
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50 extern OCTAVE_API std::string octave_fgetl (std::FILE *);
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51
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52 extern OCTAVE_API std::string octave_fgets (std::FILE *, bool& eof);
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53 extern OCTAVE_API std::string octave_fgetl (std::FILE *, bool& eof);
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54
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55 template <typename T>
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56 T
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57 octave_read_value (std::istream& is)
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58 {
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59 T retval;
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60 is >> retval;
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61 return retval;
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62 }
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63
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64 template <> OCTAVE_API double octave_read_value (std::istream& is);
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65 template <> OCTAVE_API Complex octave_read_value (std::istream& is);
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66 template <> OCTAVE_API float octave_read_value (std::istream& is);
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67 template <> OCTAVE_API FloatComplex octave_read_value (std::istream& is);
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68
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69 // The next four functions are provided for backward compatibility.
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70 inline double
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71 octave_read_double (std::istream& is)
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72 {
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73 return octave_read_value<double> (is);
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74 }
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75
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76 inline Complex
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77 octave_read_complex (std::istream& is)
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78 {
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79 return octave_read_value<Complex> (is);
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80 }
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81
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82 inline float
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83 octave_read_float (std::istream& is)
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84 {
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85 return octave_read_value<float> (is);
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86 }
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87
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88 inline FloatComplex
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89 octave_read_float_complex (std::istream& is)
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90 {
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91 return octave_read_value<FloatComplex> (is);
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92 }
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93
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94 extern OCTAVE_API void
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95 octave_write_double (std::ostream& os, double dval);
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96
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97 extern OCTAVE_API void
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98 octave_write_complex (std::ostream& os, const Complex& cval);
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100 extern OCTAVE_API void
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101 octave_write_float (std::ostream& os, float dval);
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102
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103 extern OCTAVE_API void
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104 octave_write_float_complex (std::ostream& os, const FloatComplex& cval);
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105
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106 #endif