Arp::EnumDictionary< T > Class Template Reference

The class implements an adapter for enums to define the string literals of the enum entries. More...

#include <EnumDictionary.hxx>

Inheritance diagram for Arp::EnumDictionary< T >:

Public Member Functions
	EnumDictionary (const InitializerList &fields)
	Constructor passing the enum fields as initializer list. More...
	EnumDictionary (const char *invalidValueString, const InitializerList &fields)
	Constructor passing the enum fields as initializer list. More...
std::ostream &	WriteEnumString (std::ostream &os, T value) const
	Writes the string of the specified enum value to the given stream. More...
std::istream &	ReadEnumValue (std::istream &is, T &value) const
	Tries to return the enum entry of the specified string. More...
const char *	GetEnumString (T value) const
	Returns the string of the specified enum entry. More...
bool	TryGetEnumString (T value, const char *&pResult) const
	Returns the string of the specified enum value or nullptr if the value could not be found. More...
T	GetEnumValue (const char *fieldName) const
	Returns the value of the specified enum string. More...
bool	TryGetEnumValue (const char *fieldName, T &value) const
	Tries to get the enum value of the specified string. More...
Public Member Functions inherited from Arp::EnumDictionaryBase< T >
	EnumDictionaryBase (const InitializerList &fields)
	EnumDictionaryBase (const char *invalidValueString, const InitializerList &fields)

Protected Types
using	Base = EnumDictionaryBase< T >
using	U = typename Base::U
using	InitializerList = typename Base::InitializerList
Protected Types inherited from Arp::EnumDictionaryBase< T >
using	Fields = std::map< T, const char * >
using	InitializerList = std::initializer_list< typename Fields::value_type >
using	U = typename std::underlying_type< T >::type

Additional Inherited Members
Protected Member Functions inherited from Arp::EnumDictionaryBase< T >
bool	TryGetEnumStringInternal (T value, const char *&pResult) const
	Returns the string of the specified enum value or nullptr if the value could not be found. More...
bool	TryGetEnumValueInternal (const char *fieldName, T &value) const
	Tries to get the enum value of the specified string. More...
Protected Attributes inherited from Arp::EnumDictionaryBase< T >
Fields	fields
String	invalidValueString
Static Protected Attributes inherited from Arp::EnumDictionaryBase< T >
static const T	zeroValue = static_cast<T>(0)

Detailed Description

template<class T>
class Arp::EnumDictionary< T >

The class implements an adapter for enums to define the string literals of the enum entries.

Template Parameters

T	The type of the enum.

This is a helper class to make enums parsable and loggable/formattable. This helper class is specialied for any enum T defining its string literals using EnumStrings<Tgt;.

Constructor & Destructor Documentation

EnumDictionary() [1/2]

template<class T >

Arp::EnumDictionary< T >::EnumDictionary

(

const InitializerList &

fields

)

Constructor passing the enum fields as initializer list.

Parameters

fields

The enum fields as value string pairs.

EnumDictionary() [2/2]

template<class T >

Arp::EnumDictionary< T >::EnumDictionary	(	const char *	invalidValueString,
		const InitializerList &	fields
	)

Constructor passing the enum fields as initializer list.

Parameters

fields	The enum fields as value string pairs.
invalidValueString	A string which is used for formatting an invalid enum value.

Member Function Documentation

GetEnumString()

template<class T >

const char * Arp::EnumDictionary< T >::GetEnumString ( T  value ) const

inline

Returns the string of the specified enum entry.

Parameters

value

The enum value of enum T to get the associated string from.

Returns

The string literal of the as argument passed enum value.

If the as argument passed value is not defined in the enum.

GetEnumValue()

template<class T >

T Arp::EnumDictionary< T >::GetEnumValue ( const char *  fieldName ) const

inline

Returns the value of the specified enum string.

Parameters

fieldName

The name of the enum field to get the associated string from.

Returns

The value of the as argument passed enum string.

If the as argument passed field name is not defined in the enum.

ReadEnumValue()

template<class T >

std::istream & Arp::EnumDictionary< T >::ReadEnumValue ( std::istream &  is, T &  value  ) const

inline

Tries to return the enum entry of the specified string.

Parameters

is	The stream to read the fieldName from to get the associated enum value.
value	The resulting enum value.

Returns

The as argument passed stream reference.

TryGetEnumString()

template<class T >

bool Arp::EnumDictionary< T >::TryGetEnumString ( T  value, const char *&  pResult  ) const

inline

Returns the string of the specified enum value or nullptr if the value could not be found.

Parameters

value	The enum value of enum T to get the associated string from.
pResult	The string of the as argument passed enum value or nullptr if it could not be found. Parameters value Returns true on success, otherwise false.

TryGetEnumValue()

template<class T >

bool Arp::EnumDictionary< T >::TryGetEnumValue ( const char *  fieldName, T &  value  ) const

inline

Tries to get the enum value of the specified string.

Parameters

fieldName	The string to get the associated enum value from.
value	The resulting enum value.

Returns

true on success, otherwise false.

WriteEnumString()

template<class T >

std::ostream & Arp::EnumDictionary< T >::WriteEnumString	(	std::ostream &	os,
		T	value
	)		const

Writes the string of the specified enum value to the given stream.

Parameters

os	The stream to write the enum string to.
value	The enum value to write.

Returns

The as argument passed stream reference.

If the field name of the given enum value could not be found, the enum value is written as hex-string to the stream.

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

• Arp/System/Core/EnumDictionary.hxx