Yeah, you are right, alignas is still unsupported in many compilers. clang 3.2 supports it. However, unrestricted unions has been supported in many compilers fo

Yeah, you are right, alignas is still unsupported in many compilers. clang 3.2 supports it. However, unrestricted unions has been supported in many compilers for a long time now. I would use that in this case, since you already know the type 'T'.