Stokhos_StaticFixedStandardStorage.hpp

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// @HEADER
// *****************************************************************************
//                           Stokhos Package
//
// Copyright 2009 NTESS and the Stokhos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef STOKHOS_STATIC_FIXED_STANDARD_STORAGE_HPP
#define STOKHOS_STATIC_FIXED_STANDARD_STORAGE_HPP

#include "Sacado_StaticArrayTraits.hpp"
#include <algorithm>

namespace Stokhos {

  template <typename ordinal_type, typename value_type, int Num>
  class StaticFixedStandardStorage {
  public:

    typedef value_type& reference;
    typedef const value_type& const_reference;
    typedef value_type* pointer;
    typedef const value_type* const_pointer;
    typedef Sacado::ss_array<value_type> ss;

    template <typename ord_t, typename val_t> 
    struct apply {
      typedef StaticFixedStandardStorage<ord_t,val_t,Num> type;
    };

    StaticFixedStandardStorage(const ordinal_type& sz,
             const value_type& x = value_type(0.0)) { 
      std::fill(coeff_, coeff_+Num, x); 
    }

    StaticFixedStandardStorage(const StaticFixedStandardStorage& s) {
      ss::copy(s.coeff_, coeff_, Num);
    }

    ~StaticFixedStandardStorage() {}

    StaticFixedStandardStorage& operator=(const StaticFixedStandardStorage& s) {
      ss::copy(s.coeff_, coeff_, Num);
      return *this;
    }

    void init(const_reference v) { 
      std::fill(coeff_, coeff_+Num, v); 
    }

    void init(const_pointer v, const ordinal_type& sz_ = 0) {
      if (sz_ == 0)
        ss::copy(v, coeff_, Num);
      else
        ss::copy(v, coeff_, sz_);
    }

    void load(pointer v) { 
      ss::copy(coeff_, v, Num); 
    }

    void resize(const ordinal_type& sz) {}

    static ordinal_type size() { return Num; }

    const_reference operator[] (const ordinal_type& i) const { 
      return coeff_[i];
    }

    reference operator[] (const ordinal_type& i) { return coeff_[i]; }

    const_pointer coeff() const { return coeff_; }

    pointer coeff() { return coeff_; }

  private:

    value_type coeff_[Num];

  };

}

#endif // STOKHOS_STANDARD_STORAGE_HPP