ef389dadd4
Some more C++20 changes from P1614R2, "The Mothership has Landed". * include/bits/slice_array.h (operator==(const slice&, const slice&)): Define for C++20. * include/std/complex (operator==(const T&, const complex<T>&)) (operator!=(const complex<T>&, const complex<T>&)) (operator!=(const complex<T>&, const T&)) (operator!=(const T&, const complex<T>&)): Do not declare for C++20. * testsuite/26_numerics/slice/compare.cc: New test.