Allows for iterating over the elements of a proxied collection.

RCollectionIterableOnce avoids an additional iterator copy (see TVirtualCollectionProxy::GetFunctionCopyIterator) and thus can only be iterated once.

Definition at line 58 of file RFieldProxiedCollection.hxx.

Classes
class	RIterator

struct	RIteratorFuncs

Public Member Functions
	RCollectionIterableOnce (void collection, const RIteratorFuncs &ifuncs, TVirtualCollectionProxy proxy, std::size_t stride=0U)
	Construct a `RCollectionIterableOnce` that iterates over `collection`.

	~RCollectionIterableOnce ()

RIterator	begin ()

RIterator	end ()

Static Public Member Functions
static RIteratorFuncs	GetIteratorFuncs (TVirtualCollectionProxy *proxy, bool readFromDisk)

Private Attributes
void *	fBegin = &fBeginSmallBuf

unsigned char	fBeginSmallBuf [TVirtualCollectionProxy::fgIteratorArenaSize]

void *	fEnd = &fEndSmallBuf

unsigned char	fEndSmallBuf [TVirtualCollectionProxy::fgIteratorArenaSize]

const RIteratorFuncs &	fIFuncs

const std::size_t	fStride

#include <ROOT/RField/RFieldProxiedCollection.hxx>

Constructor & Destructor Documentation

◆ RCollectionIterableOnce()

ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::RCollectionIterableOnce	(	void *	collection,
		const RIteratorFuncs &	ifuncs,
		TVirtualCollectionProxy *	proxy,
		std::size_t	stride = 0U )

inline

Construct a RCollectionIterableOnce that iterates over collection.

If elements are guaranteed to be contiguous in memory (e.g. a vector), stride can be provided for faster iteration, i.e. the address of each element is known given the base pointer.

Definition at line 114 of file RFieldProxiedCollection.hxx.

◆ ~RCollectionIterableOnce()

ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::~RCollectionIterableOnce ( )

inline

Definition at line 120 of file RFieldProxiedCollection.hxx.

Member Function Documentation

◆ begin()

RIterator ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::begin ( )

inline

Definition at line 122 of file RFieldProxiedCollection.hxx.

◆ end()

RIterator ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::end ( )

inline

Definition at line 123 of file RFieldProxiedCollection.hxx.

◆ GetIteratorFuncs()

ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::RIteratorFuncs ROOT::Experimental::RProxiedCollectionField::RCollectionIterableOnce::GetIteratorFuncs	(	TVirtualCollectionProxy *	proxy,
		bool	readFromDisk )