| // PR c++/98469 | |
| // { dg-do compile { target c++20 } } | |
| // { dg-options "-Wall" } | |
| template<typename T, typename F> | |
| constexpr T | |
| bit_cast (const F &f) noexcept | |
| { | |
| return __builtin_bit_cast (T, f); | |
| } | |
| struct S { int s; }; | |
| constexpr int foo (const S &x) { return x.s; } | |
| constexpr int bar () { return foo (bit_cast<S> (0)); } | |
| constexpr int x = bar (); | |
| static_assert (!x); |