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1 // Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
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2 // Copyright (C) 2008-2011 Conrad Sanderson
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3 //
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4 // This file is part of the Armadillo C++ library.
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5 // It is provided without any warranty of fitness
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6 // for any purpose. You can redistribute this file
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7 // and/or modify it under the terms of the GNU
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8 // Lesser General Public License (LGPL) as published
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9 // by the Free Software Foundation, either version 3
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10 // of the License or (at your option) any later version.
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11 // (see http://www.opensource.org/licenses for more info)
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12
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13
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14 //! \addtogroup fn_zeros
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15 //! @{
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16
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17
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18 //! Generate a vector with all elements set to zero
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19 arma_inline
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20 const Gen<vec::elem_type, gen_zeros>
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21 zeros(const uword n_elem)
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22 {
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23 arma_extra_debug_sigprint();
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24
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25 return Gen<vec::elem_type, gen_zeros>(n_elem, 1);
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26 }
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27
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28
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29
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30 template<typename vec_type>
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31 arma_inline
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32 const Gen<typename vec_type::elem_type, gen_zeros>
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33 zeros(const uword n_elem, const arma_empty_class junk1 = arma_empty_class(), const typename arma_Mat_Col_Row_only<vec_type>::result* junk2 = 0)
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34 {
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35 arma_extra_debug_sigprint();
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36 arma_ignore(junk1);
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37 arma_ignore(junk2);
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38
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39 if(is_Row<vec_type>::value == true)
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40 {
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41 return Gen<typename vec_type::elem_type, gen_zeros>(1, n_elem);
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42 }
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43 else
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44 {
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45 return Gen<typename vec_type::elem_type, gen_zeros>(n_elem, 1);
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46 }
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47 }
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48
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49
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50
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51 //! Generate a dense matrix with all elements set to zero
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52 arma_inline
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53 const Gen<mat::elem_type, gen_zeros>
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54 zeros(const uword n_rows, const uword n_cols)
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55 {
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56 arma_extra_debug_sigprint();
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57
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58 return Gen<mat::elem_type, gen_zeros>(n_rows, n_cols);
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59 }
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60
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61
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62
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63 template<typename mat_type>
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64 arma_inline
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65 const Gen<typename mat_type::elem_type, gen_zeros>
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66 zeros(const uword n_rows, const uword n_cols, const typename arma_Mat_Col_Row_only<mat_type>::result* junk = 0)
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67 {
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68 arma_extra_debug_sigprint();
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69 arma_ignore(junk);
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70
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71 return Gen<typename mat_type::elem_type, gen_zeros>(n_rows, n_cols);
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72 }
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73
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74
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75
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76 arma_inline
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77 const GenCube<cube::elem_type, gen_zeros>
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78 zeros(const uword n_rows, const uword n_cols, const uword n_slices)
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79 {
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80 arma_extra_debug_sigprint();
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81
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82 return GenCube<cube::elem_type, gen_zeros>(n_rows, n_cols, n_slices);
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83 }
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84
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85
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86
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87 template<typename cube_type>
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88 arma_inline
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89 const GenCube<typename cube_type::elem_type, gen_zeros>
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90 zeros(const uword n_rows, const uword n_cols, const uword n_slices, const typename arma_Cube_only<cube_type>::result* junk = 0)
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91 {
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92 arma_extra_debug_sigprint();
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93 arma_ignore(junk);
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94
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95 return GenCube<typename cube_type::elem_type, gen_zeros>(n_rows, n_cols, n_slices);
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96 }
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97
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98
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99
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100 //! @}
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