Perhaps we need bit_cast or other conversions for arrays and templated containers. Either as noop or as actual conversion.   ranges? adapter classes? Do we have enough facilities?   -----Ursprüngliche Nachricht----- Von:Paul Caprioli <paul_at_[hidden]> Gesendet:Mo 25.08.2025 22:03 Betreff:RE: [std-proposals] TBAA and extended floating-point types An:std-proposals_at_[hidden]; CC:Sebastian Wittmeier <wittmeier_at_[hidden]>; > What about bitcast instead? I'm thinking about the following, and don't see how bitcast is useful:  void daxpy(std::size_t n, const std::float64_t alpha, const std::float64_t* x,             std::float64_t* y) {      for (std::size_t i = 0; i < n; ++i) y[i] += alpha * x[i];  }  int main() {      std::size_t n = 40;      double alpha = 2.0;      std::vector<double> x(n, 1.0);      std::vector<double> y(n, 3.0);      daxpy(n, alpha, x.data(), y.data());      std::cout << y[17] << '\n';  // UB  }