On Saturday, 24 June 2017 at 12:41:47 UTC, Steven Schveighoffer
wrote:
There is no spec for this, but I know that when the compiler
has to fill gaps with something it chooses 0.
I'm almost certain there at least used to be a spec for this,
because I remember citing a link to someone who then complained
that this zero requirement hurt optimization of void members. On
the other hand though, the zero padding requirement does simplify
equality to being memcmp.
I can't find the reference now. Perhaps I'm looking in the wrong
place... or perhaps that optimization complaint actually got the
requirement removed from the spec.
I don't know. (I find search of most D stuff to be fruitless and
heavily rely on my old brain memory to index these things, but
while my memory is pretty good, it isn't flawless.)
