Storage.h

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#ifndef ELEMENTSKERNEL_ELEMENTSKERNEL_STORAGE_H_
#define ELEMENTSKERNEL_ELEMENTSKERNEL_STORAGE_H_
 
#include <cstdint>  // for int64_t
#include <map>      // for map
#include <string>   // for string
 
#include "ElementsKernel/Export.h"
 
namespace Elements {
inline namespace Kernel {
namespace Units {
 
enum class StorageType {
  Byte,
  KiloByte,
  MegaByte,
  GigaByte,
  TeraByte,
  PetaByte,
  MetricKiloByte,
  MetricMegaByte,
  MetricGigaByte,
  MetricTeraByte,
  MetricPetaByte
};
 
ELEMENTS_API extern std::map<StorageType, std::string>  StorageShortName;
ELEMENTS_API extern std::map<StorageType, std::int64_t> StorageFactor;
 
template <typename T>
ELEMENTS_API T roundToDigits(const T& value, const std::size_t& max_digits);
// explicit instantiation:
extern template ELEMENTS_API double roundToDigits<double>(const double& value, const std::size_t& max_digits);
extern template ELEMENTS_API float  roundToDigits<float>(const float& value, const std::size_t& max_digits);
 
template <std::size_t max_digits, typename T>
ELEMENTS_API T storageConvert(const T& size, StorageType source_unit, StorageType target_unit);
 
template <typename T>
ELEMENTS_API T storageConvert(const T& size, StorageType source_unit, StorageType target_unit);
// explicit instantiation:
extern template ELEMENTS_API double storageConvert<double>(const double& size, StorageType source_unit,
                                                           StorageType target_unit);
extern template ELEMENTS_API float  storageConvert<float>(const float& size, StorageType source_unit,
                                                         StorageType target_unit);
extern template ELEMENTS_API        std::int64_t
storageConvert<std::int64_t>(const std::int64_t& size, StorageType source_unit, StorageType target_unit);
 
}  // namespace Units
}  // namespace Kernel
}  // namespace Elements
 
#define ELEMENTSKERNEL_ELEMENTSKERNEL_STORAGE_IMPL_
#include "ElementsKernel/_impl/Storage.tpp"
#undef ELEMENTSKERNEL_ELEMENTSKERNEL_STORAGE_IMPL_
 
#endif  // ELEMENTSKERNEL_ELEMENTSKERNEL_STORAGE_H_