std::extents<IndexType,Extents...>::index-cast
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C++
Containers library
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(C++26)
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(C++23)
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(C++23)
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(C++23)
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std::mdspan
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std::extents
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extents::index-cast | ||||
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template
<
class OtherIndexType >
static constexpr auto /*index-cast*/ ( OtherIndexType&& i ) noexcept ; |
(since C++23)
(exposition only*) |
|
Casts the index i of type OtherIndexType into a certain integral type.
It is equivalent to:
-
return i;, if
OtherIndexTypeis an integral type other than bool - return static_cast <index_type> (i) ;
Parameters
| i | - | the index to be cast |
Return value
Cast index.
Notes
A call to this function will always return an integral type other than bool. Integer-class types can use the static_cast branch without loss of precision because this function's call sites are already constrained on the convertibility of OtherIndexType to index_type