On Sunday, 9 August 2015 at 20:13:38 UTC, ixid wrote:
This seems like a reasonable use but errors, obviously I can do
it in many other ways:
ulong[] result = iota(1UL, 10UL).array;
Error: static assert "Argument types in (ulong) are not all
convertible to size_t:
(ulong)" C:\D\dmd2\src\phobos\std\array.d 516
Yup, bug. Please file an issue at <http://issues.dlang.org/>.
And while I'm here why do arrays not implicitly cast? ulong is
happy to accept uint values but ulong[] will not accept uint[].
That's because the offsets of the elements are different. Reading
a ulong means reading 8 bytes. But in a uint[] every element only
takes up 4 bytes. So every 2 uint elements would be combined into
one ulong. And if the uint[] doesn't have an even number of
elements, you'd read beyond array bounds.
You can do that conversion explicitly, but for an implicit
conversion that would be too surprising.
