1 // SPDX-License-Identifier: Apache-2.0 2 // 3 // Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au) 4 // Copyright 2008-2016 National ICT Australia (NICTA) 5 // 6 // Licensed under the Apache License, Version 2.0 (the "License"); 7 // you may not use this file except in compliance with the License. 8 // You may obtain a copy of the License at 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 // ------------------------------------------------------------------------ 17 18 19 //! \addtogroup SpRow 20 //! @{ 21 22 23 //! Class for sparse row vectors (sparse matrices with only one row) 24 template<typename eT> 25 class SpRow : public SpMat<eT> 26 { 27 public: 28 29 typedef eT elem_type; 30 typedef typename get_pod_type<eT>::result pod_type; 31 32 static constexpr bool is_row = true; 33 static constexpr bool is_col = false; 34 static constexpr bool is_xvec = false; 35 36 37 inline SpRow(); 38 inline explicit SpRow(const uword N); 39 inline explicit SpRow(const uword in_rows, const uword in_cols); 40 inline explicit SpRow(const SizeMat& s); 41 42 inline SpRow(const char* text); 43 inline SpRow& operator=(const char* text); 44 45 inline SpRow(const std::string& text); 46 inline SpRow& operator=(const std::string& text); 47 48 inline SpRow& operator=(const eT val); 49 50 template<typename T1> inline SpRow(const Base<eT,T1>& X); 51 template<typename T1> inline SpRow& operator=(const Base<eT,T1>& X); 52 53 template<typename T1> inline SpRow(const SpBase<eT,T1>& X); 54 template<typename T1> inline SpRow& operator=(const SpBase<eT,T1>& X); 55 56 template<typename T1, typename T2> 57 inline explicit SpRow(const SpBase<pod_type,T1>& A, const SpBase<pod_type,T2>& B); 58 59 inline arma_warn_unused const SpOp<SpRow<eT>,spop_htrans> t() const; 60 inline arma_warn_unused const SpOp<SpRow<eT>,spop_htrans> ht() const; 61 inline arma_warn_unused const SpOp<SpRow<eT>,spop_strans> st() const; 62 63 inline void shed_col (const uword col_num); 64 inline void shed_cols(const uword in_col1, const uword in_col2); 65 66 // inline void insert_cols(const uword col_num, const uword N, const bool set_to_zero = true); 67 68 69 typedef typename SpMat<eT>::iterator row_iterator; 70 typedef typename SpMat<eT>::const_iterator const_row_iterator; 71 72 inline row_iterator begin_row(const uword row_num = 0); 73 inline const_row_iterator begin_row(const uword row_num = 0) const; 74 75 inline row_iterator end_row(const uword row_num = 0); 76 inline const_row_iterator end_row(const uword row_num = 0) const; 77 78 #ifdef ARMA_EXTRA_SPROW_PROTO 79 #include ARMA_INCFILE_WRAP(ARMA_EXTRA_SPROW_PROTO) 80 #endif 81 }; 82 83 84 85 //! @} 86