Format tags

Detailed Description

Specialized functions to read/write hdf5_format tags from/to HDF5 attributes.

An hdf5_format tag is a string that describes the type of object stored in an HDF5 file. A type T which is HDF5 readable/writeable should do one of the following:

• implement a static member function static hdf5_format() -> std::string or
• specialize the hdf5_format_impl struct for T and provide an implementation for the member static invoke() -> std::string.

The specialized h5_write function for type T should write the format tag to file (see h5::write_hdf5_format and h5::write_hdf5_format_as_string) and the h5_read function should check that the format tag is correct (see h5::assert_hdf5_format and h5::assert_hdf5_format_as_string).

Classes
struct	h5::hdf5_format_impl< T >
	Default type trait to get the hdf5_format tag of type T by calling its static member function T::hdf5_format(). More...
struct	h5::hdf5_format_impl< bool >
	Specialization of h5::hdf5_format_impl for bool. More...
struct	h5::hdf5_format_impl< double >
	Specialization of h5::hdf5_format_impl for double. More...
struct	h5::hdf5_format_impl< float >
	Specialization of h5::hdf5_format_impl for float. More...
struct	h5::hdf5_format_impl< int >
	Specialization of h5::hdf5_format_impl for int. More...
struct	h5::hdf5_format_impl< long >
	Specialization of h5::hdf5_format_impl for long. More...
struct	h5::hdf5_format_impl< long double >
	Specialization of h5::hdf5_format_impl for long double. More...
struct	h5::hdf5_format_impl< long long >
	Specialization of h5::hdf5_format_impl for long long. More...
struct	h5::hdf5_format_impl< std::complex< double > >
	Specialization of h5::hdf5_format_impl for std::complex<double>. More...
struct	h5::hdf5_format_impl< unsigned int >
	Specialization of h5::hdf5_format_impl for unsigned int. More...
struct	h5::hdf5_format_impl< unsigned long >
	Specialization of h5::hdf5_format_impl for unsigned long. More...
struct	h5::hdf5_format_impl< unsigned long long >
	Specialization of h5::hdf5_format_impl for unsigned long long. More...

Functions
template<typename T >
void	h5::assert_hdf5_format (group g, T const &, bool ignore_if_absent=false)
	Assert that the hdf5_format tag attached to the given group is the same as the hdf5_format tag of the type T using template argument deduction.
void	h5::assert_hdf5_format_as_string (group g, const char *tag_expected, bool ignore_if_absent=false)
	Assert that the hdf5_format tag attached to the given group is the same as the given tag.
template<typename T >
std::string	h5::get_hdf5_format ()
	Get the hdf5_format tag of type T.
template<typename T >
std::string	h5::get_hdf5_format (T const &)
	Get the hdf5_format tag of type T using template argument deduction.
std::string	h5::read_hdf5_format (group g)
	Read an hdf5_format tag from an HDF5 attribute with the name 'Format' attached to a given h5::group.
void	h5::read_hdf5_format (object obj, std::string &s)
	Read an hdf5_format tag from an HDF5 attribute with the name 'Format'.
void	h5::read_hdf5_format_from_key (group g, std::string const &key, std::string &s)
	Read an hdf5_format tag from an HDF5 attribute with the name 'Format'.
template<typename T >
void	h5::write_hdf5_format (object obj, T const &)
	Write an hdf5_format tag for type T to an HDF5 attribute with the name 'Format' using template argument deduction.
void	h5::write_hdf5_format_as_string (object obj, std::string const &s)
	Write a std::string to an HDF5 attribute with the name 'Format'.

Function Documentation

assert_hdf5_format()

template<typename T >

void h5::assert_hdf5_format	(	group	g,
		T const &	,
		bool	ignore_if_absent = false )

#include <h5/format.hpp>

Assert that the hdf5_format tag attached to the given group is the same as the hdf5_format tag of the type T using template argument deduction.

Throws a std::runtime_error if the tags don't match.

Template Parameters

T	Type for which the hdf5_format tag is to be checked.

Parameters

g	h5::group to be checked.
ignore_if_absent	If true, the assertion is ignored if the group does not have a 'Format' attribute.

Definition at line 164 of file format.hpp.

assert_hdf5_format_as_string()

void h5::assert_hdf5_format_as_string	(	group	g,
		const char *	tag_expected,
		bool	ignore_if_absent = false )

#include <h5/format.cpp>

Assert that the hdf5_format tag attached to the given group is the same as the given tag.

Throws a std::runtime_error if the tags don't match.

Parameters

g	h5::group to be checked.
tag_expected	Expected hdf5_format tag.
ignore_if_absent	If true, the assertion is ignored if the group does not have a 'Format' attribute.

Definition at line 52 of file format.cpp.

get_hdf5_format() [1/2]

template<typename T >

std::string h5::get_hdf5_format

(

)

#include <h5/format.hpp>

Get the hdf5_format tag of type T.

Template Parameters

T	Type for which the hdf5_format tag is to be retrieved..

Returns

std::string containing the hdf5_format tag.

Definition at line 82 of file format.hpp.

get_hdf5_format() [2/2]

template<typename T >

std::string h5::get_hdf5_format

(

T const &

)

#include <h5/format.hpp>

Get the hdf5_format tag of type T using template argument deduction.

Template Parameters

T	Type for which the hdf5_format tag is to be retrieved..

Returns

std::string containing the hdf5_format tag.

Definition at line 93 of file format.hpp.

read_hdf5_format() [1/2]

std::string h5::read_hdf5_format

(

group

g

)

#include <h5/format.cpp>

Read an hdf5_format tag from an HDF5 attribute with the name 'Format' attached to a given h5::group.

Parameters

g	h5::group from which the attribute is read.

Returns

String containing the hdf5_format tag.

Definition at line 39 of file format.cpp.

read_hdf5_format() [2/2]

void h5::read_hdf5_format	(	object	obj,
		std::string &	s )

#include <h5/format.cpp>

Read an hdf5_format tag from an HDF5 attribute with the name 'Format'.

Parameters

obj	h5::object from which the attribute is read.
s	String to be read into.

Definition at line 32 of file format.cpp.

read_hdf5_format_from_key()

void h5::read_hdf5_format_from_key	(	group	g,
		std::string const &	key,
		std::string &	s )

#include <h5/format.cpp>

Read an hdf5_format tag from an HDF5 attribute with the name 'Format'.

Parameters

g	h5::group containing the HDF5 object from which the attribute is read.
key	Name of the object.
s	String to be read into.

Definition at line 45 of file format.cpp.

write_hdf5_format()

template<typename T >

void h5::write_hdf5_format ( object obj, T const &  )

inline

#include <h5/format.hpp>

Write an hdf5_format tag for type T to an HDF5 attribute with the name 'Format' using template argument deduction.

Template Parameters

T	Type for which the hdf5_format tag is to be written.

Parameters

obj	h5::object to which the attribute is attached.

Definition at line 113 of file format.hpp.

write_hdf5_format_as_string()

void h5::write_hdf5_format_as_string ( object obj, std::string const & s )

inline

#include <h5/format.hpp>

Write a std::string to an HDF5 attribute with the name 'Format'.

Parameters

obj	h5::object to which the attribute is attached.
s	String to be written.

Definition at line 103 of file format.hpp.