91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (https://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup podarray
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//! @{
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struct podarray_prealloc_n_elem
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{
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static constexpr uword val = 16;
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};
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//! A lightweight array for POD types. For internal use only!
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template<typename eT>
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class podarray
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{
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public:
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arma_aligned const uword n_elem; //!< number of elements held
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arma_aligned eT* mem; //!< pointer to memory used by the object
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protected:
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//! internal memory, to avoid calling the 'new' operator for small amounts of memory.
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arma_align_mem eT mem_local[ podarray_prealloc_n_elem::val ];
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public:
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inline ~podarray();
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inline podarray();
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inline podarray (const podarray& x);
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inline const podarray& operator=(const podarray& x);
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arma_inline explicit podarray(const uword new_N);
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template<bool do_zeros>
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inline explicit podarray(const uword new_N, const arma_initmode_indicator<do_zeros>&);
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arma_inline eT& operator[] (const uword i);
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arma_inline eT operator[] (const uword i) const;
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arma_inline eT& operator() (const uword i);
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arma_inline eT operator() (const uword i) const;
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inline void set_min_size(const uword min_n_elem);
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inline void set_size(const uword new_n_elem);
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inline void reset();
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inline void fill(const eT val);
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inline void zeros();
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inline void zeros(const uword new_n_elem);
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arma_inline eT* memptr();
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arma_inline const eT* memptr() const;
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inline void copy_row(const Mat<eT>& A, const uword row);
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protected:
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inline void init_cold(const uword new_n_elem);
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inline void init_warm(const uword new_n_elem);
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};
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//! @}
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