std::basic_string_view<CharT,Traits>:: back
From cppreference.com
<
cpp
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string
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basic string view
C++
std::basic_string_view
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constexpr
const_reference back
(
)
const
;
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(since C++17) | |
Returns reference to the last character in the view. The behavior is undefined if empty ( ) == true .
Parameters
(none)
Return value
Reference to the last character, equivalent to operator [ ] ( size ( ) - 1 ) .
Complexity
Constant.
Example
Run this code
#include <iostream> #include <string_view> int main() { for (std::string_view str{"ABCDEF"}; !str.empty(); str.remove_suffix(1)) std::cout << str.back() << ' ' << str << '\n'; }
Output:
F ABCDEF E ABCDE D ABCD C ABC B AB A A
See also
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accesses the first character
(public member function) |
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checks whether the view is empty
(public member function) |
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(
DR*
)
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accesses the last character
(public member function of
std::basic_string<CharT,Traits,Allocator>
)
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