> I have yet to see a C++ compiler where the union type punning trick doesn't work The problem isn’t that compilers won’t implement the feature (that would tak

> I have yet to see a C++ compiler where the union type punning trick doesn't work The problem isn’t that compilers won’t implement the feature (that would take more work); the problem is that it’s processor-specific. The spec doesn’t mandate many specific bit-ordering layouts (some are, such two’s complement representation being mandated which was just added, &obj == &base, I think nullptr has to be 0, etc) rather than trying to make everything a PDP-11.