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annotate libinterp/corefcn/dot.cc @ 27923:bd51beb6205e

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update formatting of copyright notices * Use <https://octave.org/copyright/> instead of <https://octave.org/COPYRIGHT.html/>. * For consistency with other comments in the Octave sources, use C++-style comments for copyright blocks in C and C++ files. * Use delimiters above and below copyright blocks that are appropriate for the language used in the file. * Eliminate extra spacing inside copyright blocks. * lex.ll (looks_like_copyright): Also allow newlines and carriage returns before the word "Copyright". * scripts/mk-doc.pl (gethelp): Also skip empty comment lines. * bp-table.cc, type.m: Adjust tests.
author John W. Eaton <jwe@octave.org>
date Wed, 08 Jan 2020 11:59:41 -0500
parents 1891570abac8
children 70cdf8de553d 0a5b15007766
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27923
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 2009-2020 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
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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 "lo-blas-proto.h"
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31 #include "mx-base.h"
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32
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33 #include "builtin-defun-decls.h"
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34 #include "defun.h"
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35 #include "error.h"
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36 #include "parse.h"
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37
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38 static void
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39 get_red_dims (const dim_vector& x, const dim_vector& y, int dim,
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40 dim_vector& z, F77_INT& m, F77_INT& n, F77_INT& k)
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41 {
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42 int nd = x.ndims ();
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43 assert (nd == y.ndims ());
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44 z = dim_vector::alloc (nd);
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45 octave_idx_type tmp_m = 1;
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46 octave_idx_type tmp_n = 1;
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47 octave_idx_type tmp_k = 1;
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48 for (int i = 0; i < nd; i++)
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49 {
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50 if (i < dim)
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51 {
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52 z(i) = x(i);
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53 tmp_m *= x(i);
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54 }
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55 else if (i > dim)
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56 {
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57 z(i) = x(i);
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58 tmp_n *= x(i);
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59 }
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60 else
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61 {
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62 z(i) = 1;
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63 tmp_k = x(i);
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64 }
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65 }
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66
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67 m = octave::to_f77_int (tmp_m);
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68 n = octave::to_f77_int (tmp_n);
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69 k = octave::to_f77_int (tmp_k);
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70 }
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71
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72 DEFUN (dot, args, ,
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73 doc: /* -*- texinfo -*-
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74 @deftypefn {} {} dot (@var{x}, @var{y}, @var{dim})
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75 Compute the dot product of two vectors.
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76
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77 If @var{x} and @var{y} are matrices, calculate the dot products along the
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78 first non-singleton dimension.
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79
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80 If the optional argument @var{dim} is given, calculate the dot products
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81 along this dimension.
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82
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83 Implementation Note: This is equivalent to
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84 @code{sum (conj (@var{X}) .* @var{Y}, @var{dim})}, but avoids forming a
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85 temporary array and is faster. When @var{X} and @var{Y} are column vectors,
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86 the result is equivalent to @code{@var{X}' * @var{Y}}. Although, @code{dot}
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87 is defined for integer arrays, the output may differ from the expected result
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88 due to the limited range of integer objects.
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89 @seealso{cross, divergence}
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90 @end deftypefn */)
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91 {
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92 int nargin = args.length ();
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93
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94 if (nargin < 2 || nargin > 3)
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95 print_usage ();
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96
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97 octave_value retval;
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98 octave_value argx = args(0);
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99 octave_value argy = args(1);
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100
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101 if (! argx.isnumeric () || ! argy.isnumeric ())
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102 error ("dot: X and Y must be numeric");
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103
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104 dim_vector dimx = argx.dims ();
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105 dim_vector dimy = argy.dims ();
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106 bool match = dimx == dimy;
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107 if (! match && nargin == 2 && dimx.isvector () && dimy.isvector ())
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108 {
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109 // Change to column vectors.
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110 dimx = dimx.redim (1);
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111 argx = argx.reshape (dimx);
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112 dimy = dimy.redim (1);
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113 argy = argy.reshape (dimy);
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114 match = dimx == dimy;
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115 }
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116
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117 if (! match)
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118 error ("dot: sizes of X and Y must match");
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119
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120 int dim;
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121 if (nargin == 2)
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122 dim = dimx.first_non_singleton ();
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123 else
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124 dim = args(2).int_value (true) - 1;
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125
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126 if (dim < 0)
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127 error ("dot: DIM must be a valid dimension");
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128
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129 F77_INT m, n, k;
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130 dim_vector dimz;
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131 if (argx.iscomplex () || argy.iscomplex ())
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132 {
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133 if (argx.is_single_type () || argy.is_single_type ())
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134 {
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135 FloatComplexNDArray x = argx.float_complex_array_value ();
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136 FloatComplexNDArray y = argy.float_complex_array_value ();
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137 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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138 FloatComplexNDArray z (dimz);
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4bed806ee3d4 eliminate more simple uses of error_state
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139
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140 F77_XFCN (cdotc3, CDOTC3, (m, n, k,
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141 F77_CONST_CMPLX_ARG (x.data ()), F77_CONST_CMPLX_ARG (y.data ()),
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142 F77_CMPLX_ARG (z.fortran_vec ())));
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143 retval = z;
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144 }
90bc0cc4518f implement compiled dot and blkmm
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145 else
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146 {
6f0bd96f93c0 maint: Use new C++ archetype in more files.
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147 ComplexNDArray x = argx.complex_array_value ();
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148 ComplexNDArray y = argy.complex_array_value ();
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149 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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150 ComplexNDArray z (dimz);
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151
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152 F77_XFCN (zdotc3, ZDOTC3, (m, n, k,
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153 F77_CONST_DBLE_CMPLX_ARG (x.data ()), F77_CONST_DBLE_CMPLX_ARG (y.data ()),
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154 F77_DBLE_CMPLX_ARG (z.fortran_vec ())));
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155 retval = z;
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156 }
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157 }
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570170b6eb09 maint: Deprecate is_float_type and replace with isfloat.
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158 else if (argx.isfloat () && argy.isfloat ())
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159 {
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160 if (argx.is_single_type () || argy.is_single_type ())
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161 {
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162 FloatNDArray x = argx.float_array_value ();
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163 FloatNDArray y = argy.float_array_value ();
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164 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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165 FloatNDArray z (dimz);
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166
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167 F77_XFCN (sdot3, SDOT3, (m, n, k, x.data (), y.data (),
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168 z.fortran_vec ()));
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169 retval = z;
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170 }
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171 else
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172 {
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173 NDArray x = argx.array_value ();
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174 NDArray y = argy.array_value ();
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175 get_red_dims (dimx, dimy, dim, dimz, m, n, k);
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176 NDArray z (dimz);
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177
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178 F77_XFCN (ddot3, DDOT3, (m, n, k, x.data (), y.data (),
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179 z.fortran_vec ()));
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180 retval = z;
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181 }
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182 }
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183 else
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184 {
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185 // Non-optimized evaluation.
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186 // FIXME: This may *not* do what the user expects.
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187 // It might be more useful to issue a warning, or even an error, instead
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188 // of calculating possibly garbage results.
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189 // Think of the dot product of two int8 vectors where the multiplications
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190 // exceed intmax.
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191 octave_value_list tmp;
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192 tmp(1) = dim + 1;
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193 tmp(0) = do_binary_op (octave_value::op_el_mul, argx, argy);
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194
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195 tmp = Fsum (tmp, 1);
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196 if (! tmp.empty ())
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197 retval = tmp(0);
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198 }
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199
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200 return retval;
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201 }
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202
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203 /*
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204 %!assert (dot ([1, 2], [2, 3]), 8)
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205
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206 %!test
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207 %! x = [2, 1; 2, 1];
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208 %! y = [-0.5, 2; 0.5, -2];
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209 %! assert (dot (x, y), [0 0]);
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210 %! assert (dot (single (x), single (y)), single ([0 0]));
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211
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212 %!test
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213 %! x = [1+i, 3-i; 1-i, 3-i];
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214 %! assert (dot (x, x), [4, 20]);
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215 %! assert (dot (single (x), single (x)), single ([4, 20]));
15239
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216
a38d5ed5b3d8 dot.cc: Segfault with integers (bug #37199)
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217 %!test
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218 %! x = int8 ([1, 2]);
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219 %! y = int8 ([2, 3]);
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220 %! assert (dot (x, y), 8);
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221
a38d5ed5b3d8 dot.cc: Segfault with integers (bug #37199)
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222 %!test
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223 %! x = int8 ([1, 2; 3, 4]);
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224 %! y = int8 ([5, 6; 7, 8]);
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225 %! assert (dot (x, y), [26 44]);
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226 %! assert (dot (x, y, 2), [17; 53]);
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227 %! assert (dot (x, y, 3), [5 12; 21 32]);
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228
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229 ## This is, perhaps, surprising. Integer maximums and saturation mechanics
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230 ## prevent accurate value from being calculated.
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231 %!test
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232 %! x = int8 ([127]);
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233 %! assert (dot (x, x), 127);
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234
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235 ## Test input validation
18636
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236 %!error dot ()
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237 %!error dot (1)
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238 %!error dot (1,2,3,4)
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239 %!error <X and Y must be numeric> dot ({1,2}, [3,4])
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240 %!error <X and Y must be numeric> dot ([1,2], {3,4})
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241 %!error <sizes of X and Y must match> dot ([1 2], [1 2 3])
60562e5c8bfb Correctly validate arguments to dot function (bug #42061).
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242 %!error <sizes of X and Y must match> dot ([1 2]', [1 2 3]')
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243 %!error <sizes of X and Y must match> dot (ones (2,2), ones (2,3))
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244 %!error <DIM must be a valid dimension> dot ([1 2], [1 2], 0)
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245 */
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246
25567
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diff changeset
247 template <typename T>
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diff changeset
248 void
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249 blkmm_internal (const T& x, const T& y, T& z,
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diff changeset
250 F77_INT m, F77_INT n, F77_INT k, F77_INT np);
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251
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John W. Eaton <jwe@octave.org>
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diff changeset
252 template <>
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diff changeset
253 void
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diff changeset
254 blkmm_internal (const FloatComplexNDArray& x, const FloatComplexNDArray& y,
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diff changeset
255 FloatComplexNDArray& z,
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diff changeset
256 F77_INT m, F77_INT n, F77_INT k, F77_INT np)
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
257 {
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diff changeset
258 F77_XFCN (cmatm3, CMATM3, (m, n, k, np,
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diff changeset
259 F77_CONST_CMPLX_ARG (x.data ()),
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diff changeset
260 F77_CONST_CMPLX_ARG (y.data ()),
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diff changeset
261 F77_CMPLX_ARG (z.fortran_vec ())));
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diff changeset
262 }
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263
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diff changeset
264 template <>
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265 void
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266 blkmm_internal (const ComplexNDArray& x, const ComplexNDArray& y,
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diff changeset
267 ComplexNDArray& z,
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268 F77_INT m, F77_INT n, F77_INT k, F77_INT np)
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269 {
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diff changeset
270 F77_XFCN (zmatm3, ZMATM3, (m, n, k, np,
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271 F77_CONST_DBLE_CMPLX_ARG (x.data ()),
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272 F77_CONST_DBLE_CMPLX_ARG (y.data ()),
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273 F77_DBLE_CMPLX_ARG (z.fortran_vec ())));
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274 }
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275
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276 template <>
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diff changeset
277 void
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diff changeset
278 blkmm_internal (const FloatNDArray& x, const FloatNDArray& y, FloatNDArray& z,
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279 F77_INT m, F77_INT n, F77_INT k, F77_INT np)
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280 {
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281 F77_XFCN (smatm3, SMATM3, (m, n, k, np,
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282 x.data (), y.data (),
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diff changeset
283 z.fortran_vec ()));
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284 }
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285
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diff changeset
286 template <>
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diff changeset
287 void
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diff changeset
288 blkmm_internal (const NDArray& x, const NDArray& y, NDArray& z,
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289 F77_INT m, F77_INT n, F77_INT k, F77_INT np)
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290 {
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291 F77_XFCN (dmatm3, DMATM3, (m, n, k, np,
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292 x.data (), y.data (),
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diff changeset
293 z.fortran_vec ()));
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294 }
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295
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296 static void
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297 get_blkmm_dims (const dim_vector& dimx, const dim_vector& dimy,
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298 F77_INT& m, F77_INT& n, F77_INT& k, F77_INT& np,
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299 dim_vector& dimz)
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300 {
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301 int nd = dimx.ndims ();
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302
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303 m = octave::to_f77_int (dimx(0));
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304 k = octave::to_f77_int (dimx(1));
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305 n = octave::to_f77_int (dimy(1));
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306
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diff changeset
307 octave_idx_type tmp_np = 1;
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308
26493
bc6237a189e1 dot.cc: Fix static analyzer detected issues (bug #55347).
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diff changeset
309 bool match = ((dimy(0) == k) && (nd == dimy.ndims ()));
25567
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310
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diff changeset
311 dimz = dim_vector::alloc (nd);
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diff changeset
312
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
313 dimz(0) = m;
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diff changeset
314 dimz(1) = n;
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315 for (int i = 2; match && i < nd; i++)
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316 {
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317 match = (dimx(i) == dimy(i));
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318 dimz(i) = dimx(i);
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diff changeset
319 tmp_np *= dimz(i);
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diff changeset
320 }
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
321
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322 np = octave::to_f77_int (tmp_np);
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diff changeset
323
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
324 if (! match)
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diff changeset
325 error ("blkmm: A and B dimensions don't match: (%s) and (%s)",
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diff changeset
326 dimx.str ().c_str (), dimy.str ().c_str ());
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diff changeset
327 }
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diff changeset
328
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
329 template <typename T>
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diff changeset
330 T
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diff changeset
331 do_blkmm (const octave_value& xov, const octave_value& yov)
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
332 {
25606
959657cab846 maint: Strip trailing whitespace from source files.
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diff changeset
333 const T x = octave_value_extract<T> (xov);
959657cab846 maint: Strip trailing whitespace from source files.
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diff changeset
334 const T y = octave_value_extract<T> (yov);
25567
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diff changeset
335 F77_INT m, n, k, np;
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diff changeset
336 dim_vector dimz;
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John W. Eaton <jwe@octave.org>
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diff changeset
337
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
338 get_blkmm_dims (x.dims (), y.dims (), m, n, k, np, dimz);
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diff changeset
339
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
340 T z (dimz);
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John W. Eaton <jwe@octave.org>
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diff changeset
341
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
342 if (n != 0 && m != 0)
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
343 blkmm_internal<T> (x, y, z, m, n, k, np);
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diff changeset
344
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
345 return z;
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
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diff changeset
346 }
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
347
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14501
diff changeset
348 DEFUN (blkmm, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff changeset
349 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
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diff changeset
350 @deftypefn {} {} blkmm (@var{A}, @var{B})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff changeset
351 Compute products of matrix blocks.
112b20240c87 move docstrings in C++ files out of C strings and into comments
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parents: 21724
diff changeset
352
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
353 The blocks are given as 2-dimensional subarrays of the arrays @var{A},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
354 @var{B}. The size of @var{A} must have the form @code{[m,k,@dots{}]} and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
355 size of @var{B} must be @code{[k,n,@dots{}]}. The result is then of size
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
356 @code{[m,n,@dots{}]} and is computed as follows:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
357
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
358 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
359 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
360 for i = 1:prod (size (@var{A})(3:end))
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
361 @var{C}(:,:,i) = @var{A}(:,:,i) * @var{B}(:,:,i)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
362 endfor
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
363 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
364 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
365 @end deftypefn */)
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
366 {
20819
f428cbe7576f eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20802
diff changeset
367 if (args.length () != 2)
20802
8bb38ba1bad6 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20556
diff changeset
368 print_usage ();
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
369
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
370 octave_value retval;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
371
18100
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17787
diff changeset
372 octave_value argx = args(0);
6a71e5030df5 Follow coding convention of defining and initializing only 1 variable per line in liboctinterp.
Rik <rik@octave.org>
parents: 17787
diff changeset
373 octave_value argy = args(1);
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
374
23586
f6c5db0a02e7 maint: Deprecate is_numeric_type and replace with isnumeric.
Rik <rik@octave.org>
parents: 23585
diff changeset
375 if (! argx.isnumeric () || ! argy.isnumeric ())
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
376 error ("blkmm: A and B must be numeric");
20556
4bed806ee3d4 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20218
diff changeset
377
23581
c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex.
Rik <rik@octave.org>
parents: 23220
diff changeset
378 if (argx.iscomplex () || argy.iscomplex ())
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
379 {
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
380 if (argx.is_single_type () || argy.is_single_type ())
25567
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
381 retval = do_blkmm<FloatComplexNDArray> (argx, argy);
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
382 else
25567
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
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diff changeset
383 retval = do_blkmm<ComplexNDArray> (argx, argy);
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
384 }
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
385 else
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
386 {
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
387 if (argx.is_single_type () || argy.is_single_type ())
25567
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
388 retval = do_blkmm<FloatNDArray> (argx, argy);
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
389 else
25567
8c0a35040974 Fix blkmm to work with empty matrices (bug #54261).
John W. Eaton <jwe@octave.org>
parents: 25054
diff changeset
390 retval = do_blkmm<NDArray> (argx, argy);
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20853
diff changeset
391 }
9874
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
392
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
393 return retval;
90bc0cc4518f implement compiled dot and blkmm
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
394 }
12788
9f4b48b93f6d codesprint: Write test for dot.cc
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12642
diff changeset
395
9f4b48b93f6d codesprint: Write test for dot.cc
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12642
diff changeset
396 /*
9f4b48b93f6d codesprint: Write test for dot.cc
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12642
diff changeset
397 %!test
9f4b48b93f6d codesprint: Write test for dot.cc
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
parents: 12642
diff changeset
398 %! x(:,:,1) = [1 2; 3 4];
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399 %! x(:,:,2) = [1 1; 1 1];
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400 %! z(:,:,1) = [7 10; 15 22];
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401 %! z(:,:,2) = [2 2; 2 2];
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402 %! assert (blkmm (x,x), z);
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403 %! assert (blkmm (single (x), single (x)), single (z));
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404 %! assert (blkmm (x, single (x)), single (z));
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405
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406 %!test
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407 %! x(:,:,1) = [1 2; 3 4];
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408 %! x(:,:,2) = [1i 1i; 1i 1i];
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409 %! z(:,:,1) = [7 10; 15 22];
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410 %! z(:,:,2) = [-2 -2; -2 -2];
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411 %! assert (blkmm (x,x), z);
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412 %! assert (blkmm (single (x), single (x)), single (z));
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413 %! assert (blkmm (x, single (x)), single (z));
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414
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415 %!test <*54261>
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416 %! x = ones (0, 3, 3);
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417 %! y = ones (3, 5, 3);
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418 %! z = blkmm (x,y);
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419 %! assert (size (z), [0, 5, 3]);
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420 %! x = ones (1, 3, 3);
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421 %! y = ones (3, 0, 3);
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422 %! z = blkmm (x,y);
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423 %! assert (size (z), [1, 0, 3]);
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424
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425 ## Test input validation
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426 %!error blkmm ()
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427 %!error blkmm (1)
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428 %!error blkmm (1,2,3)
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429 %!error <A and B must be numeric> blkmm ({1,2}, [3,4])
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430 %!error <A and B must be numeric> blkmm ([3,4], {1,2})
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431 %!error <A and B dimensions don't match> blkmm (ones (2,2), ones (3,3))
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432 */