packUint64

Result!(size_t,  BitpackError) packUint64(scope  const(ulong)[]  values,
       ubyte  width,  return  scope  ubyte[]  dst)

@safe pure nothrow @nogc

Packs unsigned 64-bit values at width bits each (LSB-first).

`values`	the values to pack (each must be `< 2^width`).
`width`	bits per value, `1..64`.
`dst`	caller-provided output buffer (≥ `packedSize` bytes).

Result!(size_t, BitpackError): bytes written; failures as

documented on packUint32.