std::dynamic_extent
From cppreference.com
| Defined in header <span>
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| inline constexpr std::size_t dynamic_extent = std::numeric_limits<std::size_t>::max(); |
(since C++20) | |
std::dynamic_extent is a constant of type std::size_t that is used to differentiate std::span of static and dynamic extent.
Note
Since std::size_t is an unsigned type,
an equivalent definition is:
inline constexpr std::size_t dynamic_extent = -1;
See integral conversions.
See also
| (C++20) |
a non-owning view over a contiguous sequence of objects (class template) |