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annotate libinterp/operators/op-mi.cc @ 29989:b260322f6730

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move xdiv, xnorm, and xpow inside octave namespace * xdiv.h, xdiv.cc (elem_xdiv): Rename from x_el_div. (elem_xdiv, xdiv): Move inside octave namespace. Change all uses. Provide deprecated wrapper functions to preserve old names. * xnorm.h, xnorm.cc (xnorm, xcolnorms, xrownorms, xfrobnorm): Move inside octave namespace. Change all uses. Provide deprecated wrapper functions to preserve old names. * xpow.h, xpow.cc (elem_xpow, xpow): Move inside octave namespace. Change all uses. Provide deprecated wrapper functions to preserve old names. * ov-base.cc (install_base_type_conversions): Move inside octave namespace. * ops.h: Don't declare install_ops function here. * ov-typeinfo.cc: Declare install_ops in source file instead of including ops.h. * mk-ops.sh: Move generated code inside octave namespace. * op-b-b.cc, op-b-bm.cc, op-b-sbm.cc, op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc, op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-s.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc, op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc, op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcn.cc, op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc, op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc, op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-s.cc, op-m-scm.cc, op-m-sm.cc, op-mi.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc, op-range.cc, op-s-cm.cc, op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc, op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc, op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc, op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc, op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc: Move operator functions inside octave namespace.
author John W. Eaton <jwe@octave.org>
date Mon, 16 Aug 2021 21:38:22 -0400
parents 38c47f8f7cd6
children 796f54d4ddbf
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2020-2021 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <iostream>
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31
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32 #include "errwarn.h"
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33 #include "ops.h"
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34 #include "ov-magic-int.h"
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35 #include "ov-typeinfo.h"
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36 #include "ov.h"
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37
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38 OCTAVE_NAMESPACE_BEGIN
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39
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40 // Magic integer unary ops. Only + and - are allowed so that
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41 // expressions like
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42 //
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43 // int64 (-9007199254740994)
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44 //
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45 // produce proper int64 constants.
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46
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47 static octave_value
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48 oct_unop_unsigned_uplus (const octave_base_value& a)
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49 {
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50 const octave_magic_uint& v = dynamic_cast<const octave_magic_uint&> (a);
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51 // no-op.
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52 // FIXME: but can we do this just by incrementing the reference count?
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53 return octave_value (v.clone ());
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54 }
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55
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56 static octave_value
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57 oct_unop_unsigned_uminus (const octave_base_value& a)
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58 {
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59 const octave_magic_uint& v = dynamic_cast<const octave_magic_uint&> (a);
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60
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61 // We are storing a uint64 value, so some fakery is needed here.
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62 // Is there a better way?
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63
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64 // FIXME: Maybe there should also be octave_magic_int::as_TYPE_value
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65 // functions?
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66 octave_uint64 val (v.scalar_ref ());
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67
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68 uint64_t ival = val.value ();
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69
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70 static const uint64_t max_val
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71 = static_cast<uint64_t> (std::numeric_limits<int64_t>::max ());
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72
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73 static const uint64_t max_val_p1 = max_val + 1;
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74
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75 if (ival <= max_val)
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76 {
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77 int64_t signed_ival = ival;
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78 return octave_value (new octave_magic_int (-signed_ival));
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79 }
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80
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81 if (ival == max_val_p1)
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82 {
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83 // Correctly capture intmin. For example, negating uint8(128)
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84 // should return int8(-128) but converting directly to int8 and
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85 // negating will not return the correct result.
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86
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87 static const int64_t min_signed_ival
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88 = std::numeric_limits<int64_t>::min ();
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89
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90 return octave_value (new octave_magic_int (min_signed_ival));
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91 }
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92
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93 return octave_value (-static_cast<double> (ival));
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94 }
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95
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96 static octave_value
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97 oct_unop_signed_uplus (const octave_base_value& a)
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98 {
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99 const octave_magic_int& v = dynamic_cast<const octave_magic_int&> (a);
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100 // no-op.
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101 // FIXME: but can we do this just by incrementing the reference count?
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102 return octave_value (v.clone ());
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103 }
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104
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105 static octave_value
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106 oct_unop_signed_uminus (const octave_base_value& a)
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107 {
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108 const octave_magic_int& v = dynamic_cast<const octave_magic_int&> (a);
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109
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110 // FIXME: Maybe there should also be octave_magic_int::as_TYPE_value
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111 // functions?
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112 octave_int64 val (v.scalar_ref ());
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113
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114 return octave_value (new octave_magic_int (-val));
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115 }
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116
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117 void
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118 install_mi_ops (octave::type_info& ti)
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119 {
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120 INSTALL_UNOP_TI (ti, op_uplus, octave_magic_uint, unsigned_uplus);
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121 INSTALL_UNOP_TI (ti, op_uminus, octave_magic_uint, unsigned_uminus);
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122
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123 INSTALL_UNOP_TI (ti, op_uplus, octave_magic_int, signed_uplus);
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124 INSTALL_UNOP_TI (ti, op_uminus, octave_magic_int, signed_uminus);
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125 }
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126
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127 OCTAVE_NAMESPACE_END