3 ms·

Only in C++. In C, it's Unspecified.

• lifthrasiir 3y ago
  Even in C, incompatible object accesses are undefined, not unspecified. (`char` is a major exception.) Using `union` is explicitly allowed by ISO C for this use case; you need to use `memcpy` or `std::bit_cast` in C++ instead though.
  • grishka 3y ago
    What about reinterpret_cast?
    • saagarjha 3y ago
      Still undefined.