datasize.h File Reference

Dimensioned variables representing data size. More...

#include "lardataalg/Utilities/quantities.h"
#include <string_view>
#include <ratio>

Go to the source code of this file.

Classes
struct	util::quantities::units::Byte
struct	util::quantities::concepts::Prefix< prefixes::kibi >
	Prefix for 1024 (2^10). More...
struct	util::quantities::concepts::Prefix< prefixes::mebi >
	Prefix for 1048576 (2^20). More...
struct	util::quantities::concepts::Prefix< prefixes::gibi >
	Prefix for 1073741824 (2^30). More...
struct	util::quantities::concepts::Prefix< prefixes::tebi >
	Prefix for 2^40. More...
struct	util::quantities::concepts::Prefix< prefixes::pebi >
	Prefix for 2^50. More...
struct	util::quantities::concepts::Prefix< prefixes::exbi >
	Prefix for 2^60. More...

Namespaces
	util::quantities
	Types of variables with a unit.
	util::quantities::units
	Definitions of actual units.
	util::quantities::prefixes
	Definitions of additional prefixes.
	util::quantities::datasize_literals
	Literal constants for data size quantities.
	util::quantities::concepts
	Infrastructure for the quantities library.

Typedefs
using	util::quantities::prefixes::kibi = std::ratio<(1LL<< 10)>
	Factor 1'024 (2^10). More...
using	util::quantities::prefixes::mebi = std::ratio<(1LL<< 20)>
	Factor 1'048'576 (2^20). More...
using	util::quantities::prefixes::gibi = std::ratio<(1LL<< 30)>
	Factor 1'073'741'824 (2^30). More...
using	util::quantities::prefixes::tebi = std::ratio<(1LL<< 40)>
	Factor 2^40. More...
using	util::quantities::prefixes::pebi = std::ratio<(1LL<< 50)>
	Factor 2^50. More...
using	util::quantities::prefixes::exbi = std::ratio<(1LL<< 60)>
	Factor 2^60. More...
Data size
These time quantities are tied to util::quantities::units::Byte. most general template, scaled_byte, allowing to choose both the scale of the unit (e.g. util::quantities::prefixes::mebi for mebibyte) and the type of the numerical representation generic templates (e.g. byte_as), allowing to choose which numerical representation to use unsigned integral number (e.g. byte), 64-bit on amd64 architecture, ready for use
template<typename R , typename T = unsigned long long int>
using	util::quantities::scaled_byte = concepts::scaled_quantity< units::Byte, R, T >
	The most generic units::Byte-based quantity. More...
template<typename T = unsigned long long int>
using	util::quantities::byte_as = scaled_byte< std::ratio< 1 >, T >
	Type of data size stored in bytes. More...
template<typename T = unsigned long long int>
using	util::quantities::bytes_as = byte_as< T >
	Alias for common language habits. More...
using	util::quantities::byte = byte_as<>
	Type of data size stored in bytes, in long long precision. More...
using	util::quantities::bytes = byte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::kibibyte_as = concepts::rescale< byte_as< T >, prefixes::kibi >
	Type of data size stored in kibibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::kibibytes_as = kibibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::kibibyte = kibibyte_as<>
	Type of data size stored in kibibytes, in long long precision. More...
using	util::quantities::kibibytes = kibibyte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::mebibyte_as = concepts::rescale< byte_as< T >, prefixes::mebi >
	Type of data size stored in mebibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::mebibytes_as = mebibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::mebibyte = mebibyte_as<>
	Type of data size stored in mebibytes, in long long precision. More...
using	util::quantities::mebibytes = mebibyte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::gibibyte_as = concepts::rescale< byte_as< T >, prefixes::gibi >
	Type of data size stored in gibibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::gibibytes_as = gibibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::gibibyte = gibibyte_as<>
	Type of data size stored in pebibytes, in long long precision. More...
using	util::quantities::gibibytes = gibibyte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::tebibyte_as = concepts::rescale< byte_as< T >, prefixes::tebi >
	Type of data size stored in tebibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::tebibytes_as = tebibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::tebibyte = tebibyte_as<>
	Type of data size stored in tebibytes, in long long precision. More...
using	util::quantities::tebibytes = tebibyte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::pebibyte_as = concepts::rescale< byte_as< T >, prefixes::pebi >
	Type of data size stored in pebibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::pebibytes_as = pebibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::pebibyte = pebibyte_as<>
	Type of data size stored in pebibytes, in long long precision. More...
using	util::quantities::pebibytes = pebibyte
	Alias for common language habits. More...
template<typename T = unsigned long long int>
using	util::quantities::exbibyte_as = concepts::rescale< byte_as< T >, prefixes::exbi >
	Type of data size stored in exbibytes. More...
template<typename T = unsigned long long int>
using	util::quantities::exbibytes_as = exbibyte_as< T >
	Alias for common language habits. More...
using	util::quantities::exbibyte = exbibyte_as<>
	Type of data size stored in exbibytes, in long long precision. More...
using	util::quantities::exbibytes = exbibyte
	Alias for common language habits. More...

Functions
constexpr byte	util::quantities::datasize_literals::operator""_B (long double v)
	Literal second value. More...
constexpr byte	util::quantities::datasize_literals::operator""_B (unsigned long long int v)
constexpr kibibyte	util::quantities::datasize_literals::operator""_kiB (long double v)
	Literal kibibyte value. More...
constexpr kibibyte	util::quantities::datasize_literals::operator""_kiB (unsigned long long int v)
constexpr mebibyte	util::quantities::datasize_literals::operator""_MiB (long double v)
	Literal mebibyte value. More...
constexpr mebibyte	util::quantities::datasize_literals::operator""_MiB (unsigned long long int v)
constexpr gibibyte	util::quantities::datasize_literals::operator""_GiB (long double v)
	Literal gibibyte value. More...
constexpr gibibyte	util::quantities::datasize_literals::operator""_GiB (unsigned long long int v)
constexpr tebibyte	util::quantities::datasize_literals::operator""_TiB (long double v)
	Literal tebibyte value. More...
constexpr tebibyte	util::quantities::datasize_literals::operator""_TiB (unsigned long long int v)
constexpr pebibyte	util::quantities::datasize_literals::operator""_PiB (long double v)
	Literal pebibyte value. More...
constexpr pebibyte	util::quantities::datasize_literals::operator""_PiB (unsigned long long int v)
constexpr exbibyte	util::quantities::datasize_literals::operator""_EiB (long double v)
	Literal exbibyte value. More...
constexpr exbibyte	util::quantities::datasize_literals::operator""_EiB (unsigned long long int v)

Detailed Description

Dimensioned variables representing data size.

Author

Gianluca Petrillo (petri.nosp@m.llo@.nosp@m.slac..nosp@m.stan.nosp@m.ford..nosp@m.edu)

Date

November 2, 2018

See also

lardataalg/Utilities/quantities.h

Set of basic quantities related to data size. This is mostly a proof of concept for custom prefixes.

This is a header-only library.

Definition in file datasize.h.