RangeForWrapper.h File Reference

Utility function to enable range-for on different type iterators. More...

#include "boost/variant.hpp"
#include <stdexcept>
#include <utility>
#include <iterator>
#include <type_traits>

Go to the source code of this file.

Classes
class	util::details::RangeForWrapperIterator< BeginIter, EndIter >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Dereferencer
	Visitor to dereference an iterator. More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Dereferencer::DereferencerImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::MemberAccessor
	Visitor to access a data member of the pointed class. More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::MemberAccessor::MemberAccessorImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Incrementer
	Visitor to increment an iterator. More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Incrementer::IncrementerImpl< Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Decrementer
	Visitor to decrement an iterator. More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Decrementer::DecrementerImpl< Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Comparer
	Visitor to compare iterators (returns whether they differ). More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Comparer::ComparerImpl< A, B, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::IndexAccessor
	Visitor to access element by index. More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::IndexAccessor::IndexAccessorImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Difference
	Visitor to compare iterators (returns whether they differ). More...
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Difference::DifferenceImpl< A, B, typename >
struct	util::details::RangeForWrapperTraits< RangeRef >
	Class defining types and traits for RangeForWrapperBox. More...
class	util::details::RangeForWrapperBox< RangeRef >
	Class offering begin/end iterators of the same type out of a range of iterators of different types. More...
struct	util::details::RangeForWrapperBox< RangeRef >::DataBox
struct	util::details::SameIterTag
	Tag for internal use. More...
struct	util::details::DiffIterTag
	Tag for internal use. More...
struct	util::details::WrapRangeForDispatcher< BaseRange, SameIteratorsType >
struct	util::details::WrapRangeForDispatcher< BaseRange, true >
struct	util::details::WrapRangeForDispatcher< BaseRange, false >
struct	util::RangeForWrapperTag
	Tag marking the use of RangeForWrapperBox. More...
struct	util::details::is_type< T >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Comparer::ComparerImpl< A, B, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Comparer::ComparerImpl< A, B, std::enable_if_t< std::is_convertible< decltype(std::declval< A >()!=std::declval< B >()), bool >::value > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Dereferencer::DereferencerImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Dereferencer::DereferencerImpl< Result, Iter, std::enable_if_t< is_type_v< decltype(*(std::declval< Iter >()))> > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::MemberAccessor::MemberAccessorImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::MemberAccessor::declval< Iter >().operator->())> > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Incrementer::IncrementerImpl< Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Incrementer::IncrementerImpl< Iter, std::enable_if_t< is_type_v< decltype(++(std::declval< Iter >()))> > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Decrementer::DecrementerImpl< Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Decrementer::DecrementerImpl< Iter, std::enable_if_t< is_type_v< decltype(--(std::declval< Iter >()))> > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::IndexAccessor::IndexAccessorImpl< Result, Iter, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::IndexAccessor::IndexAccessorImpl< Result, Iter, std::enable_if_t< is_type_v< decltype((std::declval< Iter >())[0])> > >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Difference::DifferenceImpl< A, B, typename >
struct	util::details::RangeForWrapperIterator< BeginIter, EndIter >::Difference::DifferenceImpl< A, B, std::enable_if_t< std::is_convertible< decltype(std::declval< A >()-std::declval< B >()), RangeForWrapperIterator< BeginIter, EndIter >::difference_type >::value > >

Namespaces
	util
	Namespace for general, non-LArSoft-specific utilities.
	util::details

Functions
template<typename Range >
auto	util::wrapRangeFor (Range &&range) -> decltype(auto)
	Wraps an object for use in a range-for loop. More...
template<typename Range >
auto	util::operator| (Range &&range, RangeForWrapperTag) -> decltype(auto)
	Transforms a range so that it can be used in a range-for loop. More...

Variables
constexpr RangeForWrapperTag	util::range_for
template<typename T >
constexpr bool	util::details::is_type_v = is_type<T>()

Detailed Description

Utility function to enable range-for on different type iterators.

Author

Gianluca Petrillo (petri.nosp@m.llo@.nosp@m.fnal..nosp@m.gov)

Date

December 12, 2016

The functionality provided here is implemented in C++ language 2017. Better than here, of course. When C++17 is adopted in LArSoft, this header should be declared obsolete, deprecated and then removed.

Definition in file RangeForWrapper.h.