nonstd::variants Namespace Reference

Namespaces
	detail

Classes
class	bad_variant_access
class	monostate
class	variant
struct	variant_alternative
struct	variant_alternative< K, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >
struct	variant_size
struct	variant_size< variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >

Functions
variant_constexpr bool	operator< (monostate, monostate) variant_noexcept
variant_constexpr bool	operator> (monostate, monostate) variant_noexcept
variant_constexpr bool	operator<= (monostate, monostate) variant_noexcept
variant_constexpr bool	operator>= (monostate, monostate) variant_noexcept
variant_constexpr bool	operator== (monostate, monostate) variant_noexcept
variant_constexpr bool	operator!= (monostate, monostate) variant_noexcept
template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	holds_alternative (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v) variant_noexcept
template<class R , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
R &	get (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &v, nonstd_lite_in_place_type_t(R)=nonstd_lite_in_place_type(R))
template<class R , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
R const &	get (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, nonstd_lite_in_place_type_t(R)=nonstd_lite_in_place_type(R))
template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
variant_alternative< K, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >::type &	get (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &v, nonstd_lite_in_place_index_t(K)=nonstd_lite_in_place_index(K))
template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
variant_alternative< K, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >::type const &	get (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, nonstd_lite_in_place_index_t(K)=nonstd_lite_in_place_index(K))
template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
detail::add_pointer< T >::type	get_if (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > *pv, nonstd_lite_in_place_type_t(T)=nonstd_lite_in_place_type(T))
template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
detail::add_pointer< const T >::type	get_if (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const *pv, nonstd_lite_in_place_type_t(T)=nonstd_lite_in_place_type(T))
template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
detail::add_pointer< typename variant_alternative< K, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >::type >::type	get_if (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > *pv, nonstd_lite_in_place_index_t(K)=nonstd_lite_in_place_index(K))
template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
detail::add_pointer< const typename variant_alternative< K, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > >::type >::type	get_if (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const *pv, nonstd_lite_in_place_index_t(K)=nonstd_lite_in_place_index(K))
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
void	swap (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &a, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &b) variant_noexcept
template<typename R , typename Visitor , typename V1 >
R	visit (const Visitor &v, V1 const &arg1)
template<typename R , typename Visitor , typename V1 , typename V2 >
R	visit (const Visitor &v, V1 const &arg1, V2 const &arg2)
template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 >
R	visit (const Visitor &v, V1 const &arg1, V2 const &arg2, V3 const &arg3)
template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 , typename V4 >
R	visit (const Visitor &v, V1 const &arg1, V2 const &arg2, V3 const &arg3, V4 const &arg4)
template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 , typename V4 , typename V5 >
R	visit (const Visitor &v, V1 const &arg1, V2 const &arg2, V3 const &arg3, V4 const &arg4, V5 const &arg5)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator== (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator!= (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator< (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator> (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator<= (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)
template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >
bool	operator>= (variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &w)

Variables
static const std::size_t	variant_npos = static_cast<std::size_t>( -1 )

Function Documentation

operator<() [1/2]

variant_constexpr bool nonstd::variants::operator< ( monostate  , monostate    )

inline

Definition at line 957 of file variant.hpp.

operator>() [1/2]

variant_constexpr bool nonstd::variants::operator> ( monostate  , monostate    )

inline

Definition at line 958 of file variant.hpp.

operator<=() [1/2]

variant_constexpr bool nonstd::variants::operator<= ( monostate  , monostate    )

inline

Definition at line 959 of file variant.hpp.

operator>=() [1/2]

variant_constexpr bool nonstd::variants::operator>= ( monostate  , monostate    )

inline

Definition at line 960 of file variant.hpp.

operator==() [1/2]

variant_constexpr bool nonstd::variants::operator== ( monostate  , monostate    )

inline

Definition at line 961 of file variant.hpp.

operator!=() [1/2]

variant_constexpr bool nonstd::variants::operator!= ( monostate  , monostate    )

inline

Definition at line 962 of file variant.hpp.

holds_alternative()

template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::holds_alternative ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v )

inline

Definition at line 1546 of file variant.hpp.

get() [1/4]

template<class R , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

R& nonstd::variants::get ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &  v, nonstd_lite_in_place_type_t(R)  = nonstd_lite_in_place_type(R)  )

inline

Definition at line 1552 of file variant.hpp.

Referenced by ns3::RocketfuelMapReader::Read(), ns3::AnnotatedTopologyReader::SaveGraphviz(), and ns3::RocketfuelMapReader::SaveGraphviz().

get() [2/4]

template<class R , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

R const& nonstd::variants::get ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, nonstd_lite_in_place_type_t(R)  = nonstd_lite_in_place_type(R)  )

inline

Definition at line 1558 of file variant.hpp.

get() [3/4]

template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

variant_alternative< K, variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> >::type& nonstd::variants::get ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &  v, nonstd_lite_in_place_index_t(K)  = nonstd_lite_in_place_index(K)  )

inline

Definition at line 1565 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index().

get() [4/4]

template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

variant_alternative< K, variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> >::type const& nonstd::variants::get ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, nonstd_lite_in_place_index_t(K)  = nonstd_lite_in_place_index(K)  )

inline

Definition at line 1577 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index().

get_if() [1/4]

template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

detail::add_pointer<T>::type nonstd::variants::get_if ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > *  pv, nonstd_lite_in_place_type_t(T)  = nonstd_lite_in_place_type(T)  )

inline

Definition at line 1629 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and variant_nullptr.

get_if() [2/4]

template<class T , class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

detail::add_pointer<const T>::type nonstd::variants::get_if ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const *  pv, nonstd_lite_in_place_type_t(T)  = nonstd_lite_in_place_type(T)  )

inline

Definition at line 1636 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and variant_nullptr.

get_if() [3/4]

template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

detail::add_pointer< typename variant_alternative<K, variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> >::type >::type nonstd::variants::get_if ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > *  pv, nonstd_lite_in_place_index_t(K)  = nonstd_lite_in_place_index(K)  )

inline

Definition at line 1643 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and variant_nullptr.

get_if() [4/4]

template<std::size_t K, class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

detail::add_pointer< const typename variant_alternative<K, variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15> >::type >::type nonstd::variants::get_if ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const *  pv, nonstd_lite_in_place_index_t(K)  = nonstd_lite_in_place_index(K)  )

inline

Definition at line 1650 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and variant_nullptr.

swap()

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

void nonstd::variants::swap ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &  a, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > &  b  )

inline

Definition at line 1656 of file variant.hpp.

visit() [1/5]

template<typename R , typename Visitor , typename V1 >

R nonstd::variants::visit ( const Visitor &  v, V1 const &  arg1  )

inline

Definition at line 1953 of file variant.hpp.

References nonstd::variants::detail::VisitorApplicator< R >::apply().

visit() [2/5]

template<typename R , typename Visitor , typename V1 , typename V2 >

R nonstd::variants::visit ( const Visitor &  v, V1 const &  arg1, V2 const &  arg2  )

inline

Definition at line 1959 of file variant.hpp.

References nonstd::variants::detail::VisitorApplicator< R >::apply().

visit() [3/5]

template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 >

R nonstd::variants::visit ( const Visitor &  v, V1 const &  arg1, V2 const &  arg2, V3 const &  arg3  )

inline

Definition at line 1965 of file variant.hpp.

References nonstd::variants::detail::VisitorApplicator< R >::apply().

visit() [4/5]

template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 , typename V4 >

R nonstd::variants::visit ( const Visitor &  v, V1 const &  arg1, V2 const &  arg2, V3 const &  arg3, V4 const &  arg4  )

inline

Definition at line 1971 of file variant.hpp.

References nonstd::variants::detail::VisitorApplicator< R >::apply().

visit() [5/5]

template<typename R , typename Visitor , typename V1 , typename V2 , typename V3 , typename V4 , typename V5 >

R nonstd::variants::visit ( const Visitor &  v, V1 const &  arg1, V2 const &  arg2, V3 const &  arg3, V4 const &  arg4, V5 const &  arg5  )

inline

Definition at line 1977 of file variant.hpp.

References nonstd::variants::detail::VisitorApplicator< R >::apply().

operator==() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator== ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2044 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::valueless_by_exception().

operator!=() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator!= ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2054 of file variant.hpp.

operator<() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator< ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2062 of file variant.hpp.

References nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index(), and nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::valueless_by_exception().

operator>() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator> ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2074 of file variant.hpp.

operator<=() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator<= ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2082 of file variant.hpp.

operator>=() [2/2]

template<class T0 , class T1 , class T2 , class T3 , class T4 , class T5 , class T6 , class T7 , class T8 , class T9 , class T10 , class T11 , class T12 , class T13 , class T14 , class T15 >

bool nonstd::variants::operator>= ( variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  v, variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 > const &  w  )

inline

Definition at line 2090 of file variant.hpp.

Variable Documentation

variant_npos

const std::size_t nonstd::variants::variant_npos = static_cast<std::size_t>( -1 )

static

Definition at line 1012 of file variant.hpp.

Referenced by nonstd::variants::variant< T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15 >::index().