lar::details Namespace Reference

Namespace hiding implementation details. More...

Namespaces
	bulk_allocator
	Namespace specific to bulk allocator.
	counters_map
	type_traits

Classes
struct	are_same_types
struct	are_types_contained
struct	are_types_contained< First >
struct	are_types_contained< First, OtherTypes... >
class	CollectionExtremes
	Class storing a begin and a end iterator. More...
class	CounterBlock
	Type of block of counters (just a STL array until SUBCOUNTERS are in) More...
struct	CountersMapTraits
struct	enable_if_type_exists
struct	findFirstMatching_answer
struct	findFirstMatching_answer < Match, Target, false, FirstCandidate, OtherCandidates... >
struct	findFirstMatching_answer< Match, Target, true, Candidates... >
struct	findFirstMatching_dispatcher
struct	findFirstMatching_dispatcher < Match, Target, FirstCandidate, OtherCandidates... >
struct	findFirstMatching_dispatcher< Match, Target >
struct	findFirstMatching_impl
struct	findNextMatching_impl
struct	findNextMatching_impl < 0U, Match, Target, FirstCandidate, OtherCandidates... >
struct	findNextMatching_impl < NSkip, Match, Target, FirstCandidate, OtherCandidates... >
struct	findNextMatching_impl< NSkip, Match, Target >
struct	findTheMatching_impl
struct	has_duplicate_types
struct	has_duplicate_types< Key, Types... >
struct	has_duplicate_types<>
struct	has_type
struct	has_type< Target >
struct	has_type< Target, First, Others... >
struct	has_type< Target, Target, Others... >
struct	have_same_provider_types
struct	have_same_provider_types < ProviderPack< AProviders... >, ProviderPack< BProviders... > >
struct	is_derived_of
struct	is_provider_pack
struct	is_provider_pack< ProviderPack< Providers... > >
struct	OptionalHexFloatFormatter
struct	ProviderPackComparer
struct	ProviderPackComparer< APack, BPack, First >
struct	ProviderPackComparer< APack, BPack, First, Others... >
struct	ProviderPackComparerBase
struct	ProviderPackExtractor
struct	ProviderPackExtractor< First, Others... >
struct	ProviderPackExtractor< Service >
struct	RangeTraits
struct	ServiceProviderRequirementsChecker
	Compiles only if PROVIDER class satisfied service provider requirements. More...
struct	ServiceRequirementsChecker
struct	SetFrom
	Implementation detail for the extraction constructor. More...
struct	SetFrom< DestPack, SourcePack >
struct	SetFrom< DestPack, SourcePack, FirstProvider, OtherProviders... >

Typedefs
template<bool Value>
using	bool_constant = std::integral_constant< bool, Value >
template<std::size_t Value>
using	index_constant = std::integral_constant< std::size_t, Value >
template<typename T , typename R = void>
using	enable_if_type_exists_t = typename enable_if_type_exists< T, R >::type
template<typename H , typename R = void>
using	enable_if_is_handle_t = enable_if_type_exists_t< typename std::decay_t< H >::HandleTag, R >

Functions
template<typename Derived , typename... Bases>
constexpr std::size_t	indexOfBaseOf ()
	Index of the class among Bases which is base of Derived. More...
template<typename Derived , typename... Bases>
constexpr std::size_t	indexOfDerivedFrom ()
template<typename Derived , typename... Bases>
constexpr std::size_t	findBaseOf ()
	Index of the class among Bases which is base of Derived. More...
template<typename Derived , typename... Bases>
constexpr std::size_t	findDerivedFrom ()
template<typename Derived , typename... Bases>
constexpr std::size_t	hasBaseOf ()
	Returns whether there is exactly one base class of Derived among Bases. More...
template<typename Derived , typename... Bases>
constexpr std::size_t	hasDerivedFrom ()
template<typename Provider , typename APack , typename BPack >
bool	haveSameProvider (APack const &a, BPack const &b)
template<typename T >
std::ostream &	operator<< (std::ostream &os, details::OptionalHexFloatFormatter< T > fmt)
template<typename BeginIter , typename EndIter >
auto	makeCollectionExtremes (BeginIter const &b, EndIter const &e)
	Helper to create a CollectionExtremes object from two iterators. More...
template<typename Range >
auto	makeCollectionExtremes (Range const &range)
	Helper to create a CollectionExtremes object from a range object. More...
template<typename Range >
CollectionView< Range >	makeCollectionView (Range &&)
constexpr int	LowestSetBitScaler (unsigned long long int v, int b)
	Internally used by LowestSetBit. More...
template<typename T >
std::string	demangle ()
	Demangles the name of a type. More...
template<typename T >
std::string	demangle (const T &)
	Demangles the name of a type. More...

Detailed Description

Namespace hiding implementation details.

Typedef Documentation

template<bool Value>

using lar::details::bool_constant = typedef std::integral_constant<bool, Value>

Definition at line 314 of file ProviderPack.h.

template<typename H , typename R = void>

using lar::details::enable_if_is_handle_t = typedef enable_if_type_exists_t<typename std::decay_t<H>::HandleTag, R>

Definition at line 38 of file FindManyInChainP.h.

template<typename T , typename R = void>

using lar::details::enable_if_type_exists_t = typedef typename enable_if_type_exists<T, R>::type

Definition at line 34 of file FindManyInChainP.h.

template<std::size_t Value>

using lar::details::index_constant = typedef std::integral_constant<std::size_t, Value>

Definition at line 317 of file ProviderPack.h.

Function Documentation

template<typename T >

std::string lar::details::demangle

(

)

Demangles the name of a type.

Template Parameters

T	type to be demangled

Parameters

[anonymous]

parameter to determine the type

Returns

a string with the demangled name

This function relies on GCC ABI; if there is no GCC, no demangling happens. One version of this function takes no parameters, and the type must be specified explicitly in the call. The other takes one parameter, that is not actually used but allows the compiler to understand which type to use. The following usese are equivalent:

std::vector<int> v;
std::cout << demangle<std::vector<int>>() << std::endl;
std::cout << demangle(v) << std::endl;

Definition at line 205 of file BulkAllocator.h.

                         {
      std::string name = typeid(T).name();
      #ifdef __GNUG__
        int status; // some arbitrary value to eliminate the compiler warning
        std::unique_ptr<char, void(*)(void*)> res
          { abi::__cxa_demangle(name.c_str(), NULL, NULL, &status), std::free };
        return (status==0) ? res.get() : name ;
      #else // !__GNUG__
        return name;
      #endif // ?__GNUG__
    } // demangle()

template<typename T >

std::string lar::details::demangle ( const T &  )

inline

Demangles the name of a type.

Template Parameters

T	type to be demangled

Parameters

[anonymous]

parameter to determine the type

Returns

a string with the demangled name

This function relies on GCC ABI; if there is no GCC, no demangling happens. One version of this function takes no parameters, and the type must be specified explicitly in the call. The other takes one parameter, that is not actually used but allows the compiler to understand which type to use. The following usese are equivalent:

std::vector<int> v;
std::cout << demangle<std::vector<int>>() << std::endl;
std::cout << demangle(v) << std::endl;

Definition at line 218 of file BulkAllocator.h.

{ return demangle<T>(); }

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::findBaseOf

(

)

Index of the class among Bases which is base of Derived.

Template Parameters

Derived	the class to be found
Bases	a list of classes candidate to be the base of Derived

Returns

index of the class among Bases which is base of Derived

Exceptions

static_assert

if none, or multiple classes, are base of Derived

See also

hasBaseOf(), indexOfBaseOf()

Definition at line 579 of file ProviderPack.h.

References indexOfBaseOf().

      { 
        constexpr std::size_t index = indexOfBaseOf<Derived, Bases...>(); 
        static_assert(
          index < sizeof...(Bases),
          "Target is not derived from any of the available classes"
          );
        return index;
      } // findBaseOf()

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::findDerivedFrom

(

)

Definition at line 598 of file ProviderPack.h.

References indexOfDerivedFrom().

Referenced by lar::ProviderPack< Providers >::get(), and lar::ProviderPack< Providers >::set().

      { 
        constexpr std::size_t index = indexOfDerivedFrom<Base, Derived...>(); 
        static_assert(
          index < sizeof...(Derived),
          "Target is not base of any of the available classes"
          );
        return index;
      } // findDerivedFrom()

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::hasBaseOf

(

)

Returns whether there is exactly one base class of Derived among Bases.

Template Parameters

Derived	the class to be found
Bases	a list of classes candidate to be the base of Derived

Returns

whether there is exactly one base class of Derived

Exceptions

static_assert

if multiple classes are base of Derived

See also

indexOfBaseOf(), findBaseOf()

Definition at line 73 of file ProviderPack.h.

References indexOfBaseOf().

      { return indexOfBaseOf<Derived, Bases...>() < sizeof...(Bases); }

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::hasDerivedFrom

(

)

Definition at line 77 of file ProviderPack.h.

References indexOfDerivedFrom().

Referenced by lar::ProviderPack< Providers >::has().

      { return indexOfDerivedFrom<Derived, Bases...>() < sizeof...(Bases); }

template<typename Provider , typename APack , typename BPack >

bool lar::details::haveSameProvider	(	APack const &	a,
		BPack const &	b
	)

Definition at line 635 of file ProviderPack.h.

                                                          {
      static_assert(is_provider_pack<APack>() && is_provider_pack<BPack>(),
        "This class needs two ProviderPack template types.");
      return a.template get<Provider>() == b.template get<Provider>();
    } // haveSameProvider()

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::indexOfBaseOf

(

)

Index of the class among Bases which is base of Derived.

Template Parameters

Derived	the class to be found
Bases	a list of classes candidate to be the base of Derived

Returns

index of the class among Bases which is base of Derived

Exceptions

static_assert

if multiple classes are base of Derived

See also

hasBaseOf(), findBaseOf()

If no class among Bases is actually a base class of Derived, an invalid index is returned, greater than any valid index (that is, no smaller than sizeof...(Bases)).

Definition at line 575 of file ProviderPack.h.

Referenced by findBaseOf(), and hasBaseOf().

      { return findTheMatching_impl<std::is_base_of, Derived, Bases...>(); }

template<typename Derived , typename... Bases>

constexpr std::size_t lar::details::indexOfDerivedFrom

(

)

Definition at line 594 of file ProviderPack.h.

Referenced by findDerivedFrom(), and hasDerivedFrom().

      { return findTheMatching_impl<is_derived_of, Base, Derived...>(); }

constexpr int lar::details::LowestSetBitScaler ( unsigned long long int  v, int  b  )

inline

Internally used by LowestSetBit.

Definition at line 402 of file CountersMap.h.

Referenced by lar::LowestSetBit().

      { return (v & 1)? b: LowestSetBitScaler(v >> 1, b + 1); }

template<typename BeginIter , typename EndIter >

auto lar::details::makeCollectionExtremes	(	BeginIter const &	b,
		EndIter const &	e
	)

Helper to create a CollectionExtremes object from two iterators.

Definition at line 149 of file CollectionView.h.

References e.

Referenced by makeCollectionExtremes(), and lar::makeCollectionView().

      { return CollectionExtremes<BeginIter, EndIter>(b, e); }

template<typename Range >

auto lar::details::makeCollectionExtremes

(

Range const &

range

)

Helper to create a CollectionExtremes object from a range object.

Definition at line 155 of file CollectionView.h.

References makeCollectionExtremes(), and makeCollectionView().

      {
        using std::cbegin;
        using std::cend;
        return makeCollectionExtremes(cbegin(range), cend(range)); 
      } // makeCollectionExtremes(range)

template<typename Range >

CollectionView< Range > lar::details::makeCollectionView

(

Range &&

range

)

Definition at line 446 of file CollectionView.h.

Referenced by makeCollectionExtremes(), and lar::makeCollectionView().

      { return CollectionView<Range>(std::move(range)); }

template<typename T >

std::ostream& lar::details::operator<<	(	std::ostream &	os,
		details::OptionalHexFloatFormatter< T >	fmt
	)

Definition at line 81 of file hexfloat.h.

        { return fmt(os); }