Implement From<A2> for SmallVec<A1>
for all A2, A1
with the same Item
(v1)
#339
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#338 backported to v1
With
opt-level >= 1
, Rust appears to reliably compile this PR to either a basically just memcpy (for M <= N) or an alloc and a memcpy (for M > N)Resolves #272