valarray.hpp

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/*
Copyright (c) 2014, Randolph Voorhies, Shane Grant
All rights reserved.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
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documentation and/or other materials provided with the distribution.
* Neither the name of cereal nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
 
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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*/
 
#ifndef CEREAL_TYPES_VALARRAY_HPP_
#define CEREAL_TYPES_VALARRAY_HPP_
 
#include "cereal/cereal.hpp"
#include <valarray>
 
namespace cereal
{
  template <class Archive, class T> inline
  typename std::enable_if<traits::is_output_serializable<BinaryData<T>, Archive>::value
                          && std::is_arithmetic<T>::value, void>::type
  CEREAL_SAVE_FUNCTION_NAME( Archive & ar, std::valarray<T> const & valarray )
  {
    ar( make_size_tag( static_cast<size_type>(valarray.size()) ) ); // number of elements
    ar( binary_data( &valarray[0], valarray.size() * sizeof(T) ) ); // &valarray[0] ok since guaranteed contiguous
  }
 
  template <class Archive, class T> inline
  typename std::enable_if<traits::is_input_serializable<BinaryData<T>, Archive>::value
                          && std::is_arithmetic<T>::value, void>::type
  CEREAL_LOAD_FUNCTION_NAME( Archive & ar, std::valarray<T> & valarray )
  {
    size_type valarraySize;
    ar( make_size_tag( valarraySize ) );
 
    valarray.resize( static_cast<std::size_t>( valarraySize ) );
    ar( binary_data( &valarray[0], static_cast<std::size_t>( valarraySize ) * sizeof(T) ) );
  }
 
  template <class Archive, class T> inline
  typename std::enable_if<!traits::is_output_serializable<BinaryData<T>, Archive>::value
                          || !std::is_arithmetic<T>::value, void>::type
  CEREAL_SAVE_FUNCTION_NAME( Archive & ar, std::valarray<T> const & valarray )
  {
    ar( make_size_tag( static_cast<size_type>(valarray.size()) ) ); // number of elements
    for(auto && v : valarray)
      ar(v);
  }
 
  template <class Archive, class T> inline
  typename std::enable_if<!traits::is_input_serializable<BinaryData<T>, Archive>::value
                          || !std::is_arithmetic<T>::value, void>::type
  CEREAL_LOAD_FUNCTION_NAME( Archive & ar, std::valarray<T> & valarray )
  {
    size_type valarraySize;
    ar( make_size_tag( valarraySize ) );
 
    valarray.resize( static_cast<size_t>( valarraySize ) );
    for(auto && v : valarray)
      ar(v);
  }
} // namespace cereal
 
#endif // CEREAL_TYPES_VALARRAY_HPP_