std::ranges::stride_view<V>::begin
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< cpp | ranges | stride view
C++
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constexpr
auto begin(
) requires (
!__simple_view<V>
)
;
|
(1) | (since C++23) |
|
constexpr
auto begin(
)
const requires ranges::range
<
const V>
;
|
(2) | (since C++23) |
Returns an iterator to the first element of the stride_view.
1) Equivalent to
return iterator<
false
>
(this, ranges::begin
(base_)
)
;
2) Equivalent to
return iterator<
true
>
(this, ranges::begin
(base_)
)
;
Overload (1) does not participate in overload resolution if V is a simple view (that is, if V and const V
Parameters
(none)
Return value
Example
A link to test: Compiler Explorer.
Run this code
#include <print> #include <ranges> int main() { constexpr auto v = {'A', 'B', 'C'}; const auto x = v | std::views::stride(2); const auto y = v | std::views::reverse | std::views::stride(2); const auto z = v | std::views::stride(2) | std::views::reverse; std::println("{} {} {}", *x.begin(), *y.begin(), *z.begin()); }
Output:
A C C
See also
| returns an iterator or a sentinel to the end (public member function) |