annotate libinterp/corefcn/__pchip_deriv__.cc @ 21966:112b20240c87

move docstrings in C++ files out of C strings and into comments * __contourc__.cc, __dispatch__.cc, __dsearchn__.cc, __ichol__.cc, __ilu__.cc, __lin_interpn__.cc, __luinc__.cc, __magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc, besselj.cc, betainc.cc, bitfcns.cc, bsxfun.cc, cellfun.cc, colloc.cc, conv2.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, defaults.cc, det.cc, dirfns.cc, dlmread.cc, dot.cc, eig.cc, ellipj.cc, error.cc, fft.cc, fft2.cc, fftn.cc, file-io.cc, filter.cc, find.cc, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, getrusage.cc, givens.cc, graphics.cc, hash.cc, help.cc, hess.cc, hex2num.cc, input.cc, inv.cc, kron.cc, load-path.cc, load-save.cc, lookup.cc, ls-oct-text.cc, lsode.cc, lu.cc, mappers.cc, matrix_type.cc, max.cc, mgorth.cc, nproc.cc, oct-hist.cc, octave-link.cc, ordschur.cc, pager.cc, pinv.cc, pr-output.cc, profiler.cc, psi.cc, pt-jit.cc, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc, regexp.cc, schur.cc, sighandlers.cc, sparse.cc, spparms.cc, sqrtm.cc, str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc, symtab.cc, syscalls.cc, sysdep.cc, time.cc, toplev.cc, tril.cc, tsearch.cc, typecast.cc, urlwrite.cc, utils.cc, variables.cc, __delaunayn__.cc, __eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc, audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc, colamd.cc, convhulln.cc, dmperm.cc, fftw.cc, qr.cc, symbfact.cc, symrcm.cc, ov-base.cc, ov-bool-mat.cc, ov-cell.cc, ov-class.cc, ov-classdef.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-flt-re-mat.cc, ov-int16.cc, ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-java.cc, ov-null-mat.cc, ov-oncleanup.cc, ov-range.cc, ov-re-mat.cc, ov-struct.cc, ov-typeinfo.cc, ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc, ov.cc, octave.cc, pt-arg-list.cc, pt-binop.cc, pt-eval.cc, pt-mat.cc, lex.ll, oct-parse.in.yy: Docstrings are now comments instead of C strings. * build-aux/mk-opts.pl: Emit docstrings as comments instead of C strings. * DASPK-opts.in, LSODE-opts.in: Don't quote " in docstring fragments. * builtins.h: Include builtin-defun-decls.h unconditionally. * defun.h (DEFUN, DEFUNX, DEFCONSTFUN): Simply emit declaration. (DEFALIAS): Always expand to nothing. * defun-dld.h: No special macro expansions for MAKE_BUILTINS. (DEFUN_DLD): Use FORWARD_DECLARE_FUN. (DEFUNX_DLD): Use FORWARD_DECLARE_FUNX. * defun-int.h: No special macro expansions for MAKE_BUILTINS. (FORWARD_DECLARE_FUN, FORWARD_DECLARE_FUNX): New macros. (DEFINE_FUN_INSTALLER_FUN): If compiling an Octave source file, pass "external-doc" to DEFINE_FUNX_INSTALLER_FUN. (DEFUN_INTERNAL, DEFCONSTFUN_INTERNAL, DEFUNX_INTERNAL, DEFALIAS_INTERNAL): Delete. * common.mk (move_if_change_rule): New macro. (simple_move_if_change_rule): Define using move_if_change_rule. * find-defun-files.sh (DEFUN_PATTERN): Update. Don't transform file name extension to ".df". * libinterp/mk-pkg-add, gendoc.pl: Operate directly on source files. * mkbuiltins: New argument, SRCDIR. Operate directly on source files. * mkdefs: Delete. * libinterp/module.mk (BUILT_SOURCES): Update list to contain only files included in other source files. (GENERATED_MAKE_BUILTINS_INCS, DEF_FILES): Delete. (LIBINTERP_BUILT_DISTFILES): Include $(OPT_HANDLERS) here. (LIBINTERP_BUILT_NODISTFILES): Not here. Remove $(ALL_DEF_FILES from the list. (libinterp_EXTRA_DIST): Remove mkdefs from the list. (FOUND_DEFUN_FILES): Rename from SRC_DEF_FILES. (DLDFCN_DEFUN_FILES): Rename from DLDFCN_DEF_FILES. (SRC_DEFUN_FILES): Rename from SRC_DEF_FILES. (ALL_DEFUN_FILES): Rename from ALL_DEF_FILES. (%.df: %.cc): Delete pattern rule. (libinterp/build-env-features.cc, libinterp/builtins.cc, libinterp/dldfcn/PKG_ADD): Use mv instead of move-if-change. (libinterp/builtins.cc, libinterp/builtin-defun-decls.h): Update mkbuiltins command. ($(srcdir)/libinterp/DOCSTRINGS): Update gendoc.pl command. * liboctave/module.mk (BUILT_SOURCES): Don't include liboctave-build-info.cc in the list.
author John W. Eaton <jwe@octave.org>
date Tue, 21 Jun 2016 16:07:51 -0400
parents aba2e6293dd8
children 59cadee1c74b
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1 /*
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2
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3 Copyright (C) 2002-2015 Kai Habel
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4 Copyright (C) 2008-2009 Jaroslav Hajek
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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 3 of the License, or (at your
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11 option) any 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, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if defined (HAVE_CONFIG_H)
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25 # include "config.h"
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26 #endif
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27
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28 #include "defun.h"
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29 #include "error.h"
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30 #include "errwarn.h"
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31 #include "ovl.h"
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32 #include "utils.h"
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33 #include "f77-fcn.h"
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34
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35 extern "C"
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36 {
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37 F77_RET_T
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38 F77_FUNC (dpchim, DPCHIM) (const octave_idx_type& n, const double *x,
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39 const double *f, double *d,
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40 const octave_idx_type &incfd,
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41 octave_idx_type *ierr);
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42
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43 F77_RET_T
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44 F77_FUNC (pchim, PCHIM) (const octave_idx_type& n, const float *x,
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45 const float *f, float *d,
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46 const octave_idx_type& incfd,
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47 octave_idx_type *ierr);
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48 }
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49
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50 // Wrapper for SLATEC/PCHIP function DPCHIM to calculate the derivates
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51 // for piecewise polynomials.
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52
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53 DEFUN (__pchip_deriv__, args, ,
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54 doc: /* -*- texinfo -*-
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55 @deftypefn {} {} __pchip_deriv__ (@var{x}, @var{y}, @var{dim})
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56 Undocumented internal function.
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57 @end deftypefn */)
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58 {
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59 octave_value retval;
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60 int nargin = args.length ();
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62 bool rows = (nargin == 3 && args(2).uint_value () == 2);
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63
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64 if (nargin >= 2)
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65 {
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66 if (args(0).is_single_type () || args(1).is_single_type ())
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67 {
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68 FloatColumnVector xvec (args(0).float_vector_value ());
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69 FloatMatrix ymat (args(1).float_matrix_value ());
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70
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71 octave_idx_type nx = xvec.numel ();
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73 if (nx < 2)
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74 error ("__pchip_deriv__: X must be at least of length 2");
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76 octave_idx_type nyr = ymat.rows ();
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77 octave_idx_type nyc = ymat.columns ();
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78
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79 if (nx != (rows ? nyc : nyr))
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80 error ("__pchip_deriv__: X and Y dimension mismatch");
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81
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82 FloatMatrix dmat (nyr, nyc);
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84 octave_idx_type ierr;
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85 const octave_idx_type incfd = rows ? nyr : 1;
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86 volatile const octave_idx_type inc = rows ? 1 : nyr;
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87 volatile octave_idx_type k = 0;
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88
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89 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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90 {
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91 F77_XFCN (pchim, PCHIM, (nx, xvec.data (),
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92 ymat.data () + k * inc,
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93 dmat.fortran_vec () + k * inc,
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94 incfd, &ierr));
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96 k++;
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97
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98 if (ierr < 0)
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99 error ("__pchip_deriv__: PCHIM failed with ierr = %i", ierr);
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100 }
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102 retval = dmat;
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103 }
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104 else
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105 {
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106 ColumnVector xvec (args(0).vector_value ());
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107 Matrix ymat (args(1).matrix_value ());
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108
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109 octave_idx_type nx = xvec.numel ();
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111 if (nx < 2)
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112 error ("__pchip_deriv__: X must be at least of length 2");
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113
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114 octave_idx_type nyr = ymat.rows ();
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115 octave_idx_type nyc = ymat.columns ();
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116
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117 if (nx != (rows ? nyc : nyr))
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118 error ("__pchip_deriv__: X and Y dimension mismatch");
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119
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120 Matrix dmat (nyr, nyc);
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121
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122 octave_idx_type ierr;
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123 const octave_idx_type incfd = rows ? nyr : 1;
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124 volatile const octave_idx_type inc = rows ? 1 : nyr;
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125 volatile octave_idx_type k = 0;
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126
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127 for (volatile octave_idx_type i = (rows ? nyr : nyc); i > 0; i--)
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128 {
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129 F77_XFCN (dpchim, DPCHIM, (nx, xvec.data (),
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130 ymat.data () + k * inc,
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131 dmat.fortran_vec () + k * inc,
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132 incfd, &ierr));
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133 k++;
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134
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135 if (ierr < 0)
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136 error ("__pchip_deriv__: DPCHIM failed with ierr = %i", ierr);
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137 }
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138
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139 retval = dmat;
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140 }
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141 }
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142
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143 return retval;
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144 }
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145
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146 /*
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147 ## No test needed for internal helper function.
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148 %!assert (1)
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149 */