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