Function std::intrinsics::mir::CastTransmute

pub fn CastTransmute<T, U>(operand: T) -> U

🔬This is a nightly-only experimental API. (custom_mir)

触发一个 CastKind::Transmute cast。

sizeof(T) != sizeof(U) 时需要测试 UB，普通 mem::transmute 无法生成。