ffd::Bytes Class Reference

Use this class for byte-formatted values. e.g.: "123 KiB". More...

#include <45d/Bytes.hpp>

Inheritance diagram for ffd::Bytes:

Public Types
enum	PrefixType { BINARY, SI }
typedef off64_t	bytes_type
	Type to store number of bytes.

Public Member Functions
	Bytes (const std::string &str)
	Construct a new Bytes object from formatted string. More...
	Bytes (bytes_type bytes)
	Construct a new Bytes object from integral type. More...
	Bytes (void)
	Construct a new empty Bytes object. More...
	Bytes (const Bytes &other)
	Copy construct a new Bytes object. More...
	Bytes (Bytes &&other)
	Move constructor. More...
Bytes &	operator= (const Bytes &other)
	Copy assignment. More...
Bytes &	operator= (Bytes &&other)
	Assignment move constructor. More...
	~Bytes ()=default
	Destroy the Bytes object.
virtual bytes_type	get (void) const
	Get value in bytes. More...
std::string	get_str (enum PrefixType prefix_type=BINARY, int precision=2) const
	Get value as formatted string. More...
void	set (bytes_type val)
	Set value from integral type. More...
void	set (const std::string &str)
	Set value from formatted string /\d+(.\d*)?\s*[kmgtpezy]?i?b/i. More...
Bytes &	operator+= (const Bytes &other)
Bytes &	operator-= (const Bytes &other)

Protected Member Functions
bytes_type	parse_bytes (const std::string &str) const
	Parse bytes from string. More...

Protected Attributes
bytes_type	bytes_
	The actual value.

Friends
std::ostream &	operator<< (std::ostream &os, Bytes const &bytes)
	Stream insertion operator. More...
std::istream &	operator>> (std::istream &is, Bytes &bytes)
	Stream extraction operator. More...
Bytes	operator+ (const Bytes &a, const Bytes &b)
Bytes	operator- (const Bytes &a, const Bytes &b)
Bytes	operator* (const Bytes &a, int b)
Bytes	operator* (int a, const Bytes &b)
Bytes	operator/ (const Bytes &a, int b)
double	operator/ (const Bytes &a, const Bytes &b)
bool	operator== (const Bytes &a, const Bytes &b)
bool	operator!= (const Bytes &a, const Bytes &b)
bool	operator< (const Bytes &a, const Bytes &b)
bool	operator> (const Bytes &a, const Bytes &b)
bool	operator<= (const Bytes &a, const Bytes &b)
bool	operator>= (const Bytes &a, const Bytes &b)

Detailed Description

Use this class for byte-formatted values. e.g.: "123 KiB".

Constructor & Destructor Documentation

Bytes() [1/5]

ffd::Bytes::Bytes

(

const std::string &

str

)

Construct a new Bytes object from formatted string.

Parameters

str	formatted string for bytes

Bytes() [2/5]

ffd::Bytes::Bytes ( bytes_type  bytes )

inline

Construct a new Bytes object from integral type.

Parameters

bytes

Bytes() [3/5]

ffd::Bytes::Bytes ( void  )

inline

Construct a new empty Bytes object.

Bytes() [4/5]

ffd::Bytes::Bytes ( const Bytes &  other )

inline

Copy construct a new Bytes object.

Parameters

other

Bytes to be copied

Bytes() [5/5]

ffd::Bytes::Bytes ( Bytes &&  other )

inline

Move constructor.

Parameters

other

Bytes to be moved

Member Function Documentation

get()

virtual bytes_type ffd::Bytes::get ( void  ) const

inlinevirtual

Get value in bytes.

Returns

bytes_type

Reimplemented in ffd::Quota.

get_str()

std::string ffd::Bytes::get_str	(	enum PrefixType	prefix_type = BINARY,
		int	precision = 2
	)		const

Get value as formatted string.

Parameters

prefix_type

ffd::Bytes::PrefixType::BINARY for multiples of 1024, ffd::Bytes::PrefixType::SI for multiples of 1000.

Returns

std::string

operator=() [1/2]

Bytes& ffd::Bytes::operator= ( Bytes &&  other )

inline

Assignment move constructor.

Parameters

other

Bytes to be moved

Returns

Bytes& *this

operator=() [2/2]

Bytes& ffd::Bytes::operator= ( const Bytes &  other )

inline

Copy assignment.

Parameters

other

Bytes to be copied

Returns

Bytes& *this

parse_bytes()

ffd::Bytes::bytes_type ffd::Bytes::parse_bytes ( const std::string &  str ) const

protected

Parse bytes from string.

Parameters

str	String to parse

Returns

bytes_type Bytes to return

set() [1/2]

void ffd::Bytes::set ( bytes_type  val )

inline

Set value from integral type.

Parameters

val

set() [2/2]

void ffd::Bytes::set ( const std::string &  str )

inline

Set value from formatted string /\d+(.\d*)?\s*[kmgtpezy]?i?b/i.

Parameters

str

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, Bytes const &  bytes  )

friend

Stream insertion operator.

Parameters

os
bytes

Returns

std::ostream&

operator>>

std::istream& operator>> ( std::istream &  is, Bytes &  bytes  )

friend

Stream extraction operator.

Parameters

is
bytes

Returns

std::istream&

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

• src/incl/45d/Bytes.hpp
• src/impl/bytes.cpp