https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98466
Bug ID: 98466
Summary: Iterators for unordered containers do not
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
#define _GLIBCXX_DEBUG 1
#include <unordered_set>
int main()
{
std::unordered_set<int>::iterator it{};
it == it;
}
This aborts at runtime:
/home/jwakely/gcc/11/include/c++/11.0.0/debug/safe_iterator.h:461:
In function:
bool __gnu_debug::operator==(const _Self&, const _Self&)
Error: attempt to compare a singular iterator to a singular iterator.
Objects involved in the operation:
iterator "__lhs" @ 0x0x7ffc0e6d5940 {
type = std::__detail::_Node_iterator<int, true, false> (mutable
iterator);
state = singular;
}
iterator "__rhs" @ 0x0x7ffc0e6d5940 {
type = std::__detail::_Node_iterator<int, true, false> (mutable
iterator);
state = singular;
}
Aborted (core dumped)
It seems that https://wg21.link/n3644 was not implemented for the debug mode
iterators.
