comparison armadillo-2.4.4/include/armadillo_bits/podarray_bones.hpp @ 0:8b6102e2a9b0

Armadillo Library

+// Copyright (C) 2008-2010 NICTA (www.nicta.com.au)
+// Copyright (C) 2008-2010 Conrad Sanderson
+// 
+// This file is part of the Armadillo C++ library.
+// It is provided without any warranty of fitness
+// for any purpose. You can redistribute this file
+// and/or modify it under the terms of the GNU
+// Lesser General Public License (LGPL) as published
+// by the Free Software Foundation, either version 3
+// of the License or (at your option) any later version.
+// (see http://www.opensource.org/licenses for more info)
+
+
+//! \addtogroup podarray
+//! @{
+
+
+
+struct podarray_prealloc_n_elem
+  {
+  static const uword val = 16;
+  };
+
+
+
+//! A lightweight array for POD types. If the amount of memory requested is small, the stack is used.
+
+template<typename eT>
+class podarray
+  {
+  public:
+  
+  arma_aligned const uword       n_elem; //!< number of elements held
+  arma_aligned const eT* const mem;    //!< pointer to memory used by the object
+  
+  
+  protected:
+  //! Internal memory, to avoid calling the 'new' operator for small amounts of memory.
+  arma_aligned 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);
+  
+  arma_inline explicit podarray(const eT* X, const uword new_N);
+  
+  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_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;
+  
+  arma_hot inline void copy_row(const Mat<eT>& A, const uword row);
+  
+  protected:
+  
+  inline void init(const uword new_n_elem);
+  
+  };
+
+
+
+//! @}