std::inplace_vector<T,N>::rbegin, std::inplace_vector<T,N>::crbegin
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Tables
std::inplace_vector
inplace_vector::rbegininplace_vector::crbegin
constexpr reverse_iterator rbegin() noexcept;
(1)
(since C++26)
constexpr const_reverse_iterator rbegin() const noexcept;
(2)
(since C++26)
constexpr const_reverse_iterator crbegin() const noexcept;
(3)
(since C++26)
Returns a reverse iterator to the first element of the reversed *this. It corresponds to the last element of the non-reversed *this.
If *this is empty, the returned iterator is equal to rend().
Contents
[edit] Return value
Reverse iterator to the first element.
[edit] Complexity
Constant.
[edit] Notes
The underlying iterator of the returned reverse iterator is the end iterator. Hence the returned iterator is invalidated if and when the end iterator is invalidated.
[edit] Example
Run this code
#include <algorithm> #include <inplace_vector> #include <iostream> #include <string> #include <string_view> void print(const std::string_view s) { std::cout << s << ' '; } int main() { const std::inplace_vector <std::string_view, 8> data { "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" }; std::inplace_vector <std::string, 8> arr(8); std::copy (data.cbegin(), data.cend(), arr.begin()); print("Print "arr" in direct order using [cbegin, cend):\t"); std::for_each (arr.cbegin(), arr.cend(), print); print("\n\nPrint "arr" in reverse order using [crbegin, crend):\t"); std::for_each (arr.crbegin(), arr.crend(), print); }
Output:
Print "arr" in direct order using [cbegin, cend): ▁ ▂ ▃ ▄ ▅ ▆ ▇ █ Print "arr" in reverse order using [crbegin, crend): █ ▇ ▆ ▅ ▄ ▃ ▂ ▁
[edit] See also
(C++14)
(function template) [edit]