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std::span::size_bytes(3) | C++ Standard Libary | std::span::size_bytes(3) |
NAME¶
std::span::size_bytes - std::span::size_bytes
Synopsis¶
constexpr size_type size_bytes() const noexcept;
Returns the size of the sequence in bytes.
Parameters¶
(none)
Return value¶
The size of the sequence in bytes, i.e., size() * sizeof(element_type).
Example¶
// Run this code
#include <span>
#include <cstdint>
int main()
{
static constexpr std::int32_t a[] { 1, 2, 3, 4, 5 };
constexpr std::span s{a};
static_assert( sizeof(int32_t) == 4 );
static_assert( std::size(a) == 5 );
static_assert( sizeof(a) == 20 );
static_assert( s.size() == 5 );
static_assert( s.size_bytes() == 20 );
}
See also¶
size returns the number of elements in the sequence
(public member function)
2022.07.31 | http://cppreference.com |