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/C++std::basic_string_view<CharT,Traits>::begin, std::basic_string_view<CharT,Traits>::cbegin
constexpr const_iterator begin() const noexcept; | (since C++17) | |
constexpr const_iterator cbegin() const noexcept; | (since C++17) |
Returns an iterator to the first character of the view.
Parameters
(none).
Return value
const_iterator to the first character.
Complexity
Constant.
Example
#include <concepts>
#include <string_view>
int main()
{
constexpr std::string_view str_view("abcd");
constexpr auto begin = str_view.begin();
constexpr auto cbegin = str_view.cbegin();
static_assert(
*begin == 'a' and
*cbegin == 'a' and
*begin == *cbegin and
begin == cbegin and
std::same_as<decltype(begin), decltype(cbegin)>);
}See also
|
(C++17) | returns an iterator to the end (public member function) |
|
(C++11) | returns an iterator to the beginning (public member function of std::basic_string<CharT,Traits,Allocator>) |
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