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// PR c++/99701
// { dg-do compile { target c++20 } }
#include <compare>
decltype(nullptr) foo ();
auto b0 = nullptr <=> nullptr; // { dg-error "ordered comparison" }
auto b1 = 0 <=> nullptr; // { dg-error "ordered comparison" }
auto b2 = nullptr <=> 0; // { dg-error "ordered comparison" }
auto b3 = foo () <=> 0; // { dg-error "ordered comparison" }
auto b4 = 0 <=> foo (); // { dg-error "ordered comparison" }
auto b5 = foo () <=> nullptr; // { dg-error "ordered comparison" }
auto b6 = nullptr <=> foo (); // { dg-error "ordered comparison" }
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