std::basic_string_view<CharT,Traits>::begin, std::basic_string_view<CharT,Traits>::cbegin
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< cpp | string | basic string view
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
std::basic_string_view
basic_string_view::beginbasic_string_view::cbegin
(C++20)
(C++20)
(C++23)
Constants
(until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)
Deduction guides (C++20)
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.
[edit] Parameters
(none)
[edit] Return value
const_iterator to the first character.
[edit] Complexity
Constant.
[edit] Example
Run this code
#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)>); }
[edit] See also
(C++11)
(public member function of
std::basic_string<CharT,Traits,Allocator>) [edit]