Homer512 questions

Homer512 answers

• How to stop LLVM from transforming bit-masking into a branch?
• How std::atomic wait operation works?
• Is implicit conversion to std::optional guaranteed to use move constructor?
• Efficiency of Eigen::Ref compared to Eigen::VectorXd as function arguments
• Copy and Move Assignment with additional argument
• Eigen vector constructor initialization vs comma initialization
• why numpy's nextafter(0,inf) will raise err when flag under(flow) enabled?
• In Eigen, for a preallocated matrix, does the assignment operator try to reuse existing memory?
• Speedup an if-else ladder C++
• Does the rounding rule of Java's Math.round conform to the IEEE 754 standard?