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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2020.
author John W. Eaton <jwe@octave.org>
date Mon, 06 Jan 2020 22:29:51 -0500
parents b442ec6dda5c
children bd51beb6205e
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1 /*
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2
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1891570abac8 update Octave Project Developers copyright for the new year
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3 Copyright (C) 2002-2020 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 distribution
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6 or <https://octave.org/COPYRIGHT.html/>.
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7
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8
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9 This file is part of Octave.
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10
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11 Octave is free software: you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by
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13 the Free Software Foundation, either version 3 of the License, or
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14 (at your option) any later version.
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15
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16 Octave is distributed in the hope that it will be useful, but
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17 WITHOUT ANY WARRANTY; without even the implied warranty of
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18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 GNU General Public License for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with Octave; see the file COPYING. If not, see
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23 <https://www.gnu.org/licenses/>.
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24
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25 */
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26
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27 #if defined (HAVE_CONFIG_H)
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28 # include "config.h"
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29 #endif
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30
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31 #include "lo-slatec-proto.h"
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32
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33 #include "defun.h"
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34 #include "error.h"
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35 #include "errwarn.h"
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36 #include "ovl.h"
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37 #include "utils.h"
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38 #include "f77-fcn.h"
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39
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40 // Wrapper for SLATEC/PCHIP function DPCHIM to calculate the derivates
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41 // for piecewise polynomials.
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42
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43 DEFUN (__pchip_deriv__, args, ,
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44 doc: /* -*- texinfo -*-
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45 @deftypefn {} {} __pchip_deriv__ (@var{x}, @var{y}, @var{dim})
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46 Undocumented internal function.
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47 @end deftypefn */)
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48 {
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49 octave_value retval;
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50 int nargin = args.length ();
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51
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52 bool rows = (nargin == 3 && args(2).uint_value () == 2);
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53
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54 if (nargin >= 2)
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55 {
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56 if (args(0).is_single_type () || args(1).is_single_type ())
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57 {
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58 FloatColumnVector xvec (args(0).float_vector_value ());
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59 FloatMatrix ymat (args(1).float_matrix_value ());
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60
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61 F77_INT nx = octave::to_f77_int (xvec.numel ());
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62
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63 if (nx < 2)
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64 error ("__pchip_deriv__: X must be at least of length 2");
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65
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66 octave_idx_type nyr = ymat.rows ();
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67 octave_idx_type nyc = ymat.columns ();
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68
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69 if (nx != (rows ? nyc : nyr))
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70 error ("__pchip_deriv__: X and Y dimension mismatch");
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71
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72 FloatMatrix dmat (nyr, nyc);
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73
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74 F77_INT ierr;
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75 const F77_INT incfd = (rows ? octave::to_f77_int (nyr) : 1);
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76 volatile const octave_idx_type inc = (rows ? 1 : nyr);
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77 volatile octave_idx_type k = 0;
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78
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79 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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80 {
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81 F77_XFCN (pchim, PCHIM, (nx, xvec.data (),
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82 ymat.data () + k * inc,
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83 dmat.fortran_vec () + k * inc,
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84 incfd, ierr));
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85
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86 k++;
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87
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88 if (ierr < 0)
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89 error ("__pchip_deriv__: PCHIM failed with ierr = %i", ierr);
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90 }
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91
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92 retval = dmat;
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93 }
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94 else
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95 {
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96 ColumnVector xvec (args(0).vector_value ());
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97 Matrix ymat (args(1).matrix_value ());
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98
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99 F77_INT nx = octave::to_f77_int (xvec.numel ());
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100
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101 if (nx < 2)
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102 error ("__pchip_deriv__: X must be at least of length 2");
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103
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104 octave_idx_type nyr = ymat.rows ();
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105 octave_idx_type nyc = ymat.columns ();
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106
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107 if (nx != (rows ? nyc : nyr))
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108 error ("__pchip_deriv__: X and Y dimension mismatch");
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109
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110 Matrix dmat (nyr, nyc);
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111
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112 F77_INT ierr;
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113 const F77_INT incfd = (rows ? octave::to_f77_int (nyr) : 1);
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114 volatile const octave_idx_type inc = (rows ? 1 : nyr);
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115 volatile octave_idx_type k = 0;
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116
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117 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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118 {
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119 F77_XFCN (dpchim, DPCHIM, (nx, xvec.data (),
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120 ymat.data () + k * inc,
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121 dmat.fortran_vec () + k * inc,
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122 incfd, ierr));
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123 k++;
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124
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125 if (ierr < 0)
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126 error ("__pchip_deriv__: DPCHIM failed with ierr = %i", ierr);
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127 }
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128
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129 retval = dmat;
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130 }
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131 }
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132
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133 return retval;
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134 }
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135
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
136 /*
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
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137 ## No test needed for internal helper function.
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
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138 %!assert (1)
3641167e5b75 codesprint: *.cc helper functions do not need tests
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
139 */