def METHOD_NAME(significand, exponent, stream=None):
    """Return a new array of floating point values composed from the
    entries of `significand` and `exponent`, paired together as
    `result = significand * 2**exponent`.
    """
    if not significand.flags.forc or not exponent.flags.forc:
        raise RuntimeError(
            "only contiguous arrays may " "be used as arguments to this operation"
        )
    result = gpuarray.GPUArray(significand.shape, significand.dtype)
    func = elementwise.get_ldexp_kernel()
    func.prepared_async_call(
        significand._grid,
        significand._block,
        stream,
        significand.gpudata,
        exponent.gpudata,
        result.gpudata,
        significand.mem_size,
    )
    return result