Mercurial > hg > octave-nkf
annotate src/ov-builtin.cc @ 12556:88558b8eb8a7
Add deprecated entry for cquad() pointing to quadcc().
HG Enter commit message. Lines beginning with 'HG:' are removed.
author | Rik <octave@nomad.inbox5.com> |
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date | Thu, 31 Mar 2011 09:57:11 -0700 |
parents | fd0a3ac60b0e |
children | ad9263d965dc |
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2974 | 1 /* |
2 | |
11523 | 3 Copyright (C) 1996-2011 John W. Eaton |
2974 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
2974 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
2974 | 20 |
21 */ | |
22 | |
23 #ifdef HAVE_CONFIG_H | |
24 #include <config.h> | |
25 #endif | |
26 | |
27 #include "error.h" | |
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28 #include "gripes.h" |
2974 | 29 #include "oct-obj.h" |
30 #include "ov-builtin.h" | |
31 #include "ov.h" | |
4748 | 32 #include "toplev.h" |
33 #include "unwind-prot.h" | |
2974 | 34 |
3219 | 35 DEFINE_OCTAVE_ALLOCATOR (octave_builtin); |
2974 | 36 |
4612 | 37 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_builtin, |
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38 "built-in function", |
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39 "built-in function"); |
2974 | 40 |
41 octave_value_list | |
4247 | 42 octave_builtin::subsref (const std::string& type, |
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43 const std::list<octave_value_list>& idx, |
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44 int nargout) |
3933 | 45 { |
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46 return octave_builtin::subsref (type, idx, nargout, 0); |
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47 } |
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48 |
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49 octave_value_list |
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50 octave_builtin::subsref (const std::string& type, |
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51 const std::list<octave_value_list>& idx, |
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52 int nargout, const std::list<octave_lvalue>* lvalue_list) |
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53 { |
3933 | 54 octave_value_list retval; |
55 | |
56 switch (type[0]) | |
57 { | |
58 case '(': | |
5154 | 59 { |
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60 int tmp_nargout = (type.length () > 1 && nargout == 0) ? 1 : nargout; |
5154 | 61 |
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62 retval = do_multi_index_op (tmp_nargout, idx.front (), |
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63 idx.size () == 1 ? lvalue_list : 0); |
5154 | 64 } |
3933 | 65 break; |
66 | |
67 case '{': | |
68 case '.': | |
69 { | |
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70 std::string nm = type_name (); |
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71 error ("%s cannot be indexed with %c", nm.c_str (), type[0]); |
3933 | 72 } |
73 break; | |
74 | |
75 default: | |
76 panic_impossible (); | |
77 } | |
78 | |
5775 | 79 // FIXME -- perhaps there should be an |
4059 | 80 // octave_value_list::next_subsref member function? See also |
81 // octave_user_function::subsref. | |
82 // | |
5775 | 83 // FIXME -- Note that if a function call returns multiple |
4059 | 84 // values, and there is further indexing to perform, then we are |
85 // ignoring all but the first value. Is this really what we want to | |
86 // do? If it is not, then what should happen for stat("file").size, | |
87 // for exmaple? | |
3933 | 88 |
4219 | 89 if (idx.size () > 1) |
4994 | 90 retval = retval(0).next_subsref (nargout, type, idx); |
4059 | 91 |
92 return retval; | |
3933 | 93 } |
94 | |
95 octave_value_list | |
3544 | 96 octave_builtin::do_multi_index_op (int nargout, const octave_value_list& args) |
2974 | 97 { |
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98 return octave_builtin::do_multi_index_op (nargout, args, 0); |
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99 } |
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100 |
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101 octave_value_list |
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102 octave_builtin::do_multi_index_op (int nargout, const octave_value_list& args, |
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103 const std::list<octave_lvalue> *lvalue_list) |
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104 { |
2974 | 105 octave_value_list retval; |
106 | |
107 if (error_state) | |
108 return retval; | |
109 | |
5864 | 110 if (args.has_magic_colon ()) |
2974 | 111 ::error ("invalid use of colon in function argument list"); |
112 else | |
4748 | 113 { |
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114 unwind_protect frame; |
4987 | 115 |
5743 | 116 octave_call_stack::push (this); |
4975 | 117 |
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118 frame.add_fcn (octave_call_stack::pop); |
4748 | 119 |
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120 if (lvalue_list || curr_lvalue_list) |
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121 { |
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122 frame.protect_var (curr_lvalue_list); |
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123 curr_lvalue_list = lvalue_list; |
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124 } |
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125 |
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126 try |
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127 { |
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128 retval = (*f) (args, nargout); |
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129 // Do not allow null values to be returned from functions. |
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130 // FIXME -- perhaps true builtins should be allowed? |
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131 retval.make_storable_values (); |
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132 // Fix the case of a single undefined value. |
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133 // This happens when a compiled function uses |
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134 // octave_value retval; |
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135 // instead of |
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136 // octave_value_list retval; |
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137 // the idiom is very common, so we solve that here. |
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138 if (retval.length () == 1 && retval.xelem (0).is_undefined ()) |
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139 retval.clear (); |
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140 } |
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141 catch (octave_execution_exception) |
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142 { |
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143 gripe_library_execution_error (); |
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144 } |
4748 | 145 } |
2974 | 146 |
147 return retval; | |
148 } | |
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149 |
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150 |
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151 const std::list<octave_lvalue> *octave_builtin::curr_lvalue_list = 0; |