Where can I find documentation on C++ memory alignment across different platforms/compilers?

Question

I\'m looking for a good (comprehensive) doc about memory alignment in C++, typical approaches, differences between compilers, and common pitfalls. Just to check if my understand

Answer 1

Imagine the case where addresses must be 16-byte aligned like for example the PS3. And then imagine that the shift == 1. This would then for sure be a non 16-byte aligned pointer which would not work on this machine.