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1 // mappers.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994 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 2, or (at your option) any |
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11 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, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_mappers_h) |
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25 #define octave_mappers_h 1 |
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26 |
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27 class Complex; |
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28 |
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29 typedef double (*d_d_Mapper)(double); |
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30 typedef double (*d_c_Mapper)(const Complex&); |
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31 typedef Complex (*c_c_Mapper)(const Complex&); |
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32 |
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33 // If can_return_complex_for_real_arg is 1, lower_limit and |
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34 // upper_limit specify the range of values for which a real arg |
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35 // returns a real value. Outside that range, we have to convert args |
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36 // to complex, and call the complex valued function. |
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37 // |
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38 // If can_return_complex_for_real_arg is 0, lower_limit and |
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39 // upper_limit are ignored. |
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40 |
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41 struct Mapper_fcn |
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42 { |
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43 int can_return_complex_for_real_arg; |
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44 double lower_limit; |
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45 double upper_limit; |
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46 d_d_Mapper d_d_mapper; |
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47 d_c_Mapper d_c_mapper; |
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48 c_c_Mapper c_c_mapper; |
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49 }; |
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50 |
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51 struct builtin_mapper_function |
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52 { |
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53 char *name; |
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54 int can_return_complex_for_real_arg; |
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55 double lower_limit; |
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56 double upper_limit; |
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57 d_d_Mapper d_d_mapper; |
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58 d_c_Mapper d_c_mapper; |
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59 c_c_Mapper c_c_mapper; |
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60 char *help_string; |
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61 }; |
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62 |
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63 extern double arg (double x); |
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64 extern double conj (double x); |
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65 extern double fix (double x); |
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66 extern double imag (double x); |
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67 extern double real (double x); |
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68 extern double round (double x); |
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69 extern double signum (double x); |
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70 extern double xisnan (double x); |
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71 extern double xfinite (double x); |
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72 extern double xisinf (double x); |
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73 |
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529
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74 extern double xisnan (const Complex& x); |
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75 extern double xfinite (const Complex& x); |
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76 extern double xisinf (const Complex& x); |
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77 |
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78 extern Complex acos (const Complex& x); |
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79 extern Complex acosh (const Complex& x); |
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80 extern Complex asin (const Complex& x); |
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81 extern Complex asinh (const Complex& x); |
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82 extern Complex atan (const Complex& x); |
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83 extern Complex atanh (const Complex& x); |
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84 extern Complex ceil (const Complex& x); |
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85 extern Complex fix (const Complex& x); |
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86 extern Complex floor (const Complex& x); |
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87 extern Complex log10 (const Complex& x); |
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88 extern Complex round (const Complex& x); |
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89 extern Complex signum (const Complex& x); |
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90 extern Complex tan (const Complex& x); |
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91 extern Complex tanh (const Complex& x); |
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92 |
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93 extern void install_mapper_functions (void); |
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94 |
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95 #endif |
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96 |
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97 /* |
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98 ;;; Local Variables: *** |
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99 ;;; mode: C++ *** |
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100 ;;; page-delimiter: "^/\\*" *** |
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101 ;;; End: *** |
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102 */ |
