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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 #if !defined (octave_defun_h) |
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25 #define octave_defun_h 1 |
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26 |
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27 #if defined (octave_defun_dld_h) |
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28 #error defun.h and defun-dld.h both included in same file! |
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29 #endif |
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30 |
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31 #include "defun-int.h" |
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32 |
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33 // Define a builtin function. |
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34 // |
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35 // name is the name of the function, unqouted. |
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36 // |
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37 // args_name is the name of the octave_value_list variable used to pass |
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38 // the argument list to this function. |
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39 // |
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40 // nargout_name is the name of the int variable used to pass the |
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41 // number of output arguments this function is expected to produce. |
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42 // |
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43 // doc is the simple help text for the function. |
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44 |
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45 #define DEFUN(name, args_name, nargout_name, doc) \ |
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46 DEFUN_INTERNAL (name, args_name, nargout_name, false, doc) |
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47 |
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48 // This one can be used when `name' cannot be used directly (if it is |
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49 // already defined as a macro). In that case, name is already a |
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50 // quoted string, and the internal name of the function must be passed |
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51 // too (the convetion is to use a prefix of "F", so "foo" becomes "Ffoo"). |
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52 |
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53 #define DEFUNX(name, fname, args_name, nargout_name, doc) \ |
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54 DEFUNX_INTERNAL (name, fname, args_name, nargout_name, false, doc) |
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55 |
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56 // Define a builtin command-style function. |
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57 // |
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58 // This is like DEFUN, except that it defines a function that can be |
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59 // called from the Octave language without using parenthesis to |
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60 // surround the arguments). |
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61 |
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62 #define DEFCMD(name, args_name, nargout_name, doc) \ |
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63 DEFUN_INTERNAL (name, args_name, nargout_name, true, doc) |
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64 |
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65 // For backward compatibility. |
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66 |
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67 #define DEFUN_TEXT DEFCMD |
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68 |
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69 // This is a function with a name that can't be hidden by a variable. |
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70 #define DEFCONSTFUN(name, args_name, nargout_name, doc) \ |
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71 DEFCONSTFUN_INTERNAL (name, args_name, nargout_name, true, doc) |
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72 |
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73 // Define a mapper function. |
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74 // |
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75 // name is the name of the function, unquoqted. |
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76 // |
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77 // ch_map is a pointer to a function that should be called for |
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78 // integer arguments that are expected to create integer results. |
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79 // (It's a kluge to handle character mappers like isalpha.) |
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80 // |
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81 // d_b_map is a pointer to a function that should be called for real |
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82 // arguments that are expected to create bool results. |
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83 // |
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84 // c_b_map is a pointer to a function that should be called for |
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85 // complex arguments that are expected to create bool results. |
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86 // |
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87 // d_d_map is a pointer to a function that should be called for real |
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88 // arguments that are expected to create real results. |
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89 // |
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90 // d_c_map is a pointer to a function that should be called for real |
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91 // arguments that are expected to create complex results. |
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92 // |
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93 // c_c_map is a pointer to a function that should be called for |
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94 // complex arguments that are expected to create complex results. |
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95 // |
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96 // lo is the lower bound of the range for which real arguments |
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97 // return real results (e.g., lo == 0 for sqrt). |
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98 // |
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99 // hi is the upper bound of the range for which real arguments |
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100 // return real results (e.g., hi == Inf for sqrt). |
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101 // |
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102 // ch_map_flag has the following meanings for the ch_map function: |
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103 // |
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104 // 0 => this function returns a matrix of ones and zeros |
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105 // 1 => this function returns a numeric matrix (any values) |
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106 // 2 => this function returns a std::string array |
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107 // |
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108 // can_ret_cmplx_for_real is a flag that says whether this function |
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109 // can create a complex number given a real-valued argument |
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110 // (e.g., sqrt (-1)). |
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111 // |
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112 // doc is the simple help text for the function. |
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113 |
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114 #define DEFUN_MAPPER(name, ch_map, d_b_map, c_b_map, d_d_map, \ |
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115 d_c_map, c_c_map, lo, hi, ch_map_flag, \ |
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116 can_ret_cmplx_for_real, doc) \ |
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117 DEFUN_MAPPER_INTERNAL (name, ch_map, d_b_map, c_b_map, d_d_map, \ |
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118 d_c_map, c_c_map, lo, hi, ch_map_flag, \ |
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119 can_ret_cmplx_for_real, doc) |
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120 |
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121 // Make alias another name for the existing function name. This macro |
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122 // must be used in the same file where name is defined, after the |
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123 // definition for name. |
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124 |
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125 #define DEFALIAS(alias, name) \ |
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126 DEFALIAS_INTERNAL (alias, name) |
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127 |
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128 #endif |
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129 |
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130 /* |
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131 ;;; Local Variables: *** |
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132 ;;; mode: C++ *** |
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133 ;;; End: *** |
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134 */ |
