lmdb::val Class Reference

Wrapper class for MDB_val structures. More...

#include <lmdb++.h>

Public Member Functions
	val () noexcept=default
	Default constructor.
	val (const std::string &data) noexcept
	Constructor.
	val (const char *const data) noexcept
	Constructor.
	val (const void *const data, const std::size_t size) noexcept
	Constructor.
	val (val &&other) noexcept=default
	Move constructor.
val &	operator= (val &&other) noexcept=default
	Move assignment operator.
	~val () noexcept=default
	Destructor.
	operator MDB_val * () noexcept
	Returns an MDB_val* pointer.
	operator const MDB_val * () const noexcept
	Returns an MDB_val* pointer.
bool	empty () const noexcept
	Determines whether this value is empty.
std::size_t	size () const noexcept
	Returns the size of the data.
template<typename T>
T *	data () noexcept
	Returns a pointer to the data.
template<typename T>
const T *	data () const noexcept
	Returns a pointer to the data.
char *	data () noexcept
	Returns a pointer to the data.
const char *	data () const noexcept
	Returns a pointer to the data.
template<typename T>
val &	assign (const T *const data, const std::size_t size) noexcept
	Assigns the value.
val &	assign (const char *const data) noexcept
	Assigns the value.
val &	assign (const std::string &data) noexcept
	Assigns the value.

Protected Attributes
MDB_val	_val

Detailed Description

Wrapper class for MDB_val structures.

Note

Instances of this class are movable and copyable both.

See also

http://symas.com/mdb/doc/group__mdb.html#structMDB__val

Constructor & Destructor Documentation

val() [1/5]

lmdb::val::val ( )

defaultnoexcept

Default constructor.

val() [2/5]

lmdb::val::val ( const std::string & data )

inlinenoexcept

Constructor.

val() [3/5]

lmdb::val::val ( const char *const data )

inlinenoexcept

Constructor.

val() [4/5]

lmdb::val::val ( const void *const data, const std::size_t size )

inlinenoexcept

Constructor.

val() [5/5]

lmdb::val::val ( val && other )

defaultnoexcept

Move constructor.

~val()

lmdb::val::~val ( )

defaultnoexcept

Destructor.

Member Function Documentation

assign() [1/3]

val & lmdb::val::assign ( const char *const data )

inlinenoexcept

Assigns the value.

assign() [2/3]

val & lmdb::val::assign ( const std::string & data )

inlinenoexcept

Assigns the value.

assign() [3/3]

template<typename T>

val & lmdb::val::assign ( const T *const data, const std::size_t size )

inlinenoexcept

Assigns the value.

data() [1/4]

const char * lmdb::val::data ( ) const

inlinenoexcept

Returns a pointer to the data.

data() [2/4]

template<typename T>

const T * lmdb::val::data ( ) const

inlinenoexcept

Returns a pointer to the data.

data() [3/4]

char * lmdb::val::data ( )

inlinenoexcept

Returns a pointer to the data.

data() [4/4]

template<typename T>

T * lmdb::val::data ( )

inlinenoexcept

Returns a pointer to the data.

empty()

bool lmdb::val::empty ( ) const

inlinenoexcept

Determines whether this value is empty.

operator const MDB_val *()

lmdb::val::operator const MDB_val * ( ) const

inlinenoexcept

Returns an MDB_val* pointer.

operator MDB_val *()

lmdb::val::operator MDB_val * ( )

inlinenoexcept

Returns an MDB_val* pointer.

operator=()

val & lmdb::val::operator= ( val && other )

defaultnoexcept

Move assignment operator.

size()

std::size_t lmdb::val::size ( ) const

inlinenoexcept

Returns the size of the data.

Member Data Documentation

_val

MDB_val lmdb::val::_val

protected

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

• lmdb++.h