Weird issue with std.range.iota.length

[tsbockman via Digitalmars-d]

On Friday, 12 February 2016 at 10:34:32 UTC, tsbockman wrote:
> Bounds checking. If iota's length is not expressible as a 
> `size_t`, convert it to one *safely* using `std.conv.to()`.

Just to clarify - the bit about `std.conv.to()` is just an 
example.

A better solution in this specific case would be to check once, 
while the iota() range is being constructed, whether its length 
is expressible as a `size_t` or not.