uni20::presentation::data_column< T > Class Template Reference

Typed column schema with owned metadata and deferred display formatting. More...

#include <data_table.hpp>

Public Types
using	value_type = T

Public Member Functions
data_column &	alignment (table_alignment value)
	data_column (std::string identifier)
std::string const &	description () const noexcept
data_column &	description (std::string text)
data_column_display const &	display () const noexcept
data_column &	fixed (int digits)
	Use fractional decimal digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.
data_column &	fractional (bool enabled=true)
	Select exact fractions for half-integers or exact mpreal values.
data_column &	general (int digits=-1)
	Use significant digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.
std::string const &	identifier () const noexcept
std::string const &	label () const noexcept
data_column &	label (std::string text)
data_column &	missing (std::string text)
data_column &	round_trip ()
	Recover finite real values from their text, including the sign of zero.
data_column &	scientific (int digits)
	Use fractional mantissa digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.
std::string const &	unit () const noexcept
data_column &	unit (std::string text)

Detailed Description

template<DataTableValue T>
class uni20::presentation::data_column< T >

Typed column schema with owned metadata and deferred display formatting.

Member Typedef Documentation

value_type

template<DataTableValue T>

using uni20::presentation::data_column< T >::value_type = T

Constructor & Destructor Documentation

data_column()

template<DataTableValue T>

uni20::presentation::data_column< T >::data_column ( std::string  identifier )

inlineexplicit

Member Function Documentation

alignment()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::alignment ( table_alignment  value )

inline

description() [1/2]

template<DataTableValue T>

std::string const & uni20::presentation::data_column< T >::description ( ) const

inlinenoexcept

description() [2/2]

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::description ( std::string  text )

inline

display()

template<DataTableValue T>

data_column_display const & uni20::presentation::data_column< T >::display ( ) const

inlinenoexcept

fixed()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::fixed ( int  digits )

inline

Use fractional decimal digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.

fractional()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::fractional ( bool  enabled = true )

inline

Select exact fractions for half-integers or exact mpreal values.

For mpreal this also selects fraction output in CSV/TSV; approximate values are unchanged.

general()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::general ( int  digits = -1 )

inline

Use significant digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.

identifier()

template<DataTableValue T>

std::string const & uni20::presentation::data_column< T >::identifier ( ) const

inlinenoexcept

label() [1/2]

template<DataTableValue T>

std::string const & uni20::presentation::data_column< T >::label ( ) const

inlinenoexcept

label() [2/2]

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::label ( std::string  text )

inline

missing()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::missing ( std::string  text )

inline

round_trip()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::round_trip ( )

inline

Recover finite real values from their text, including the sign of zero.

Selects general notation with native max_digits10 or the approximate MPFR value's digit count and disables negative-zero normalization. Exact nonintegers require fractional() instead. A later fixed/scientific/general call replaces this numeric format with ordinary display formatting.

scientific()

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::scientific ( int  digits )

inline

Use fractional mantissa digits; -1 selects native max_digits10 or approximate MPFR round-trip digits.

unit() [1/2]

template<DataTableValue T>

std::string const & uni20::presentation::data_column< T >::unit ( ) const

inlinenoexcept

unit() [2/2]

template<DataTableValue T>

data_column & uni20::presentation::data_column< T >::unit ( std::string  text )

inline

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The documentation for this class was generated from the following file:

• data_table.hpp