annotate liboctave/lo-utils.h @ 11521:00fe5069b70e

update bootstrap scripts from gnulib sources
author John W. Eaton <jwe@octave.org>
date Fri, 14 Jan 2011 02:58:24 -0500
parents e4e82740e9cd
children fd0a3ac60b0e
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1 /*
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2
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3 Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
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4 2007, 2008 John W. Eaton
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if !defined (octave_liboctave_utils_h)
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25 #define octave_liboctave_utils_h 1
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26
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27 #include <cstdio>
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28
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29 #include <iostream>
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30 #include <string>
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31
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32 #include "lo-cutils.h"
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33 #include "oct-cmplx.h"
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34
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35 extern OCTAVE_API bool xis_int_or_inf_or_nan (double x);
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36 extern OCTAVE_API bool xis_one_or_zero (double x);
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37 extern OCTAVE_API bool xis_zero (double x);
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38 extern OCTAVE_API bool xtoo_large_for_float (double x);
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39
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40 extern OCTAVE_API bool xis_int_or_inf_or_nan (float x);
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41 extern OCTAVE_API bool xis_one_or_zero (float x);
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42 extern OCTAVE_API bool xis_zero (float x);
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43 extern OCTAVE_API bool xtoo_large_for_float (float x);
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44
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45 extern OCTAVE_API char *strsave (const char *);
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46
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47 extern OCTAVE_API void
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48 octave_putenv (const std::string&, const std::string&);
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49
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50 extern OCTAVE_API std::string octave_fgets (std::FILE *);
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51 extern OCTAVE_API std::string octave_fgetl (std::FILE *);
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52
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53 extern OCTAVE_API std::string octave_fgets (std::FILE *, bool& eof);
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54 extern OCTAVE_API std::string octave_fgetl (std::FILE *, bool& eof);
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55
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56 template <typename T>
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57 T
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58 octave_read_value (std::istream& is)
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59 {
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60 T retval;
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61 is >> retval;
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62 return retval;
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63 }
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64
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65 template <> OCTAVE_API double octave_read_value (std::istream& is);
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66 template <> OCTAVE_API Complex octave_read_value (std::istream& is);
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67 template <> OCTAVE_API float octave_read_value (std::istream& is);
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68 template <> OCTAVE_API FloatComplex octave_read_value (std::istream& is);
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69
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70 // The next four functions are provided for backward compatibility.
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71 inline double
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72 octave_read_double (std::istream& is)
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73 {
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74 return octave_read_value<double> (is);
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75 }
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76
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77 inline Complex
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78 octave_read_complex (std::istream& is)
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79 {
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80 return octave_read_value<Complex> (is);
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81 }
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82
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83 inline float
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84 octave_read_float (std::istream& is)
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85 {
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86 return octave_read_value<float> (is);
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87 }
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88
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89 inline FloatComplex
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90 octave_read_float_complex (std::istream& is)
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91 {
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92 return octave_read_value<FloatComplex> (is);
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93 }
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95 extern OCTAVE_API void
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96 octave_write_double (std::ostream& os, double dval);
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97
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98 extern OCTAVE_API void
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99 octave_write_complex (std::ostream& os, const Complex& cval);
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100
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101 extern OCTAVE_API void
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102 octave_write_float (std::ostream& os, float dval);
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103
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104 extern OCTAVE_API void
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105 octave_write_float_complex (std::ostream& os, const FloatComplex& cval);
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106
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107 #endif