https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115914
Bug ID: 115914
Summary: SIGSEGV when std::generator co_yield different ranges
of elements
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: hewillk at gmail dot com
Target Milestone: ---
#include <generator>
#include <ranges>
#include <iostream>
#include <vector>
template<std::ranges::input_range... Rs>
auto concat(Rs&&... rs) -> std::generator<const int&> {
(co_yield std::ranges::elements_of(rs), ...);
}
int main() {
std::vector v{1, 2, 3};
auto r = std::views::iota(4, 10);
for (int i : concat(v, r))
std::cout << i << ' ';
}
GCC emits SIGSEGV, while Clang outputs the expected results.
https://godbolt.org/z/33h5TThea
