constexpr size_type size_bytes() const noexcept; | (since C++20) |
Returns the size of the sequence in bytes.
(none).
The size of the sequence in bytes, i.e., size() * sizeof(element_type).
int main() {}
#include <cstdint>
#include <span>
constexpr std::int32_t a[]{1, 2, 3, 4, 5};
constexpr std::span s{a};
static_assert
(
sizeof(int32_t) == 4 and
std::size(a) == 5 and
sizeof a == 20 and
s.size() == 5 and
s.size_bytes() == 20
);|
(C++20) | returns the number of elements in the sequence (public member function) |
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