Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp2a/spaceship-scalar1a.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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// { dg-do run { target c++2a } } #include <compare> #define assert(X) do { if (!(X)) __builtin_abort(); } while(0) template <class T, class U, class R> constexpr bool check(T a, U b, R expected) { auto r = a <=> b; static_assert (__is_same_as (decltype (r), R)); return r == expected; } int main() { static_assert (check (1, 2, std::strong_ordering::less)); enum E1 { a = 0 }; static_assert (check (a, 1, std::strong_ordering::less)); enum class E2 { a, b }; static_assert (check (E2::a, E2::b, std::strong_ordering::less)); int ar[2]; static_assert (check (&ar[1], &ar[0], std::strong_ordering::greater)); static_assert (check (3.14, 3.14, std::partial_ordering::equivalent)); }