unpackUint64

Result!(size_t,  BitpackError) unpackUint64(scope  const(ubyte)[]  src,
       size_t count,  ubyte  width,  return  scope  ulong[]  dst)

@safe pure nothrow @nogc

Unpacks count 64-bit values packed at width bits (LSB-first).

`src`	input starting at the packed run (≥ `packedSize` bytes).
`count`	number of values to extract (`dst.length ≥ count`).
`width`	bits per value, `1..64`.
`dst`	caller-provided output buffer.

Result!(size_t, BitpackError): bytes consumed — exactly

packedSize(count, width); failures as documented on unpackUint32.