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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/99402] [10/11 Regression] std::copy creates
 _GLIBCXX_DEBUG false positive for attempt to subscript a dereferenceable
 (start-of-sequence) iterator
Date: Fri, 05 Mar 2021 12:59:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99402

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced:

#include <algorithm>
#include <set>
#include <vector>

using namespace std;

int main()
{
    // any container with non-random access iterators:
    const set<int> source =3D { 0, 1 };
    vector<int> dest(1);
    copy(source.begin(), ++source.begin(), dest.begin());
}=