std::tuple_size(std::span)
From cppreference.com
| Defined in header <span>
|
||
| template< class T, std::size_t N > class tuple_size< std::span<T, N> > : |
(1) | (since C++20) |
| template< class T > class tuple_size< std::span<T, std::dynamic_extent> >; // Not defined |
(2) | (since C++20) |
Provides access to the number of elements in a static-extent span as a compile-time constant expression. If the span has dynamic extent, the tuple_size specialization is an incomplete type.
Inherited from std::integral_constant
Member constants
| value [static] |
N, the number of elements in the span (public static member constant) |
Member functions
| operator std::size_t |
converts the object to std::size_t, returns value (public member function) |
| operator() (C++14) |
returns value (public member function) |
Member types
| Type | Definition |
value_type
|
std::size_t
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type
|
std::integral_constant<std::size_t, value> |
Example
| This section is incomplete Reason: no example |
See also
obtains the size of tuple at compile time (class template specialization) |