Alan Birtles questions

Alan Birtles answers

• Understanding the practical application of Intel's _mm256_shuffle_epi8 definition
• Why is this not a memory leak in C++?
• How to Link Graphviz Lib When Compile C++ program
• Where is the C++ standard library on macOS?
• Are the iterators of `map<key, value, greater<>>` and `map<key, value, less<>>` guaranteed to be the same type?
• Why is std::array<T,0> sized and aligned according to T in libc++?
• stl function and function type vs function pointer type
• Will int to double conversion round up, down or to nearest double?
• C++ callback timer implementation
• How to make_from_tuple on the heap?