Store and operate on (file/package/partition) sizes. More...

#include <FSize.h>

Inheritance diagram for FSize:

Collaboration diagram for FSize:

Public Types
enum	Unit { B, K, M, G, T, P, E, Z, Y }
	The Units.

Public Member Functions
	FSize (const boost::multiprecision::cpp_int &size_r=0, const Unit unit_r=Unit::B)
	Construct from size in certain unit. More...

	FSize (double size_r)
	Construct from size in Byte. More...

	FSize (const std::string &sizeStr, const Unit unit_r=Unit::B)
	Construct from string containing a number in given unit. More...

	operator long long () const
	Conversions to native data types - only explicit as it might overflow If the value is out of range then the behavior depends on the boost version. More...

	operator int () const

	operator double () const

	operator boost::multiprecision::cpp_int () const

boost::multiprecision::cpp_int	in_unit (const Unit unit_r) const

FSize	operator- () const

FSize &	operator+= (const FSize &rhs)

FSize &	operator-= (const FSize &rhs)

FSize &	*operator=** (const FSize &rhs)

FSize &	operator/= (const FSize &rhs)

bool	operator< (const FSize &rhs) const

bool	operator== (const FSize &rhs) const

FSize &	operator++ ()

FSize &	operator-- ()

FSize &	fillBlock (FSize blocksize_r=boost::multiprecision::cpp_int(KB))
	Adjust size to multiple of `blocksize_r`

FSize	fullBlock (FSize blocksize_r=boost::multiprecision::cpp_int(KB)) const
	Return a new size adjusted to multiple of `blocksize_r`

Unit	bestUnit () const
	Return the best unit for string representation.

std::string	form (const Unit unit_r, unsigned fw=0, unsigned prec=bestPrec, const bool showunit=true) const
	Return string representation in given Unit. More...

std::string	form (unsigned fw=0, unsigned prec=bestPrec, const bool showunit=true) const
	Return string representation in bestUnit.

std::string	asString () const
	Default string representation (precision 1 and unit appended).

Static Public Member Functions
static boost::multiprecision::cpp_int	factor (const Unit unit_r)
	Return ammount of bytes in Unit.

static const char *	unit (const Unit unit_r)
	String representation of Unit.

Static Public Attributes
static const boost::multiprecision::cpp_int	KB = 1024

static const boost::multiprecision::cpp_int	MB = FSize::KB * 1024

static const boost::multiprecision::cpp_int	GB = FSize::MB * 1024

static const boost::multiprecision::cpp_int	TB = FSize::GB * 1024

static const boost::multiprecision::cpp_int	PB = FSize::TB * 1024

static const boost::multiprecision::cpp_int	EB = FSize::PB * 1024

static const boost::multiprecision::cpp_int	ZB = FSize::EB * 1024

static const boost::multiprecision::cpp_int	YB = FSize::ZB * 1024

static const unsigned	bestPrec = (unsigned)-1
	Used as precision argument to form(), the 'best' precision according to Unist is chosen.

Detailed Description

Store and operate on (file/package/partition) sizes.

Definition at line 45 of file FSize.h.

Constructor & Destructor Documentation

FSize::FSize	(	const boost::multiprecision::cpp_int &	size_r = `0`,
		const Unit	unit_r = `Unit::B`
	)

inline

Construct from size in certain unit.

E.g. FSize( 1, FSize::Unit::K ) makes 1024 Byte.

Definition at line 121 of file FSize.h.

FSize::FSize ( double size_r )

inline

Construct from size in Byte.

Parameters

size_r the initial value

Definition at line 129 of file FSize.h.

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FSize::FSize	(	const std::string &	sizeStr,
		const Unit	unit_r = `Unit::B`
	)

Construct from string containing a number in given unit.

Parameters

sizeStr	input string - must contain only numbers
unit_r	optional unit, bytes by default

Exceptions

std::runtime_error if the string contains any non numeric characters, even a trailing white space!

Definition at line 50 of file FSize.cc.

Member Function Documentation

std::string FSize::form	(	const Unit	unit_r,
		unsigned	fw = `0`,
		unsigned	prec = `bestPrec`,
		const bool	showunit = `true`
	)		const

Return string representation in given Unit.

Parameter fw and prec denote field width and precision as in a "%*.*f" printf format string. Avalue of bestPrec automatically picks an appropriate precision depending on the unit. If showunit ist true, the string representaion of Unit is appended separated by a single blank.

If Unit is Byte, precision is set to zero.

Definition at line 111 of file FSize.cc.

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FSize::operator long long ( ) const

inlineexplicit

Conversions to native data types - only explicit as it might overflow If the value is out of range then the behavior depends on the boost version.

1.67 - the min/max values for the corresponding type are returned
1.66 - returns just the lower bits

Definition at line 148 of file FSize.h.

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

/home/abuild/rpmbuild/BUILD/libyui-3.4.2/src/FSize.h
/home/abuild/rpmbuild/BUILD/libyui-3.4.2/src/FSize.cc

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation