private static ndarray _broadcast_to(object oarray, object oshape, bool subok, bool _readonly)
{
shape newshape = NumpyExtensions.ConvertTupleToShape(oshape);
if (newshape == null)
{
throw new Exception("Unable to convert shape object");
}
if (newshape.iDims == null || newshape.iDims.Length == 0)
{
newshape = new shape(asanyarray(oarray).shape);
}
ndarray array = np.array(asanyarray(oarray), copy: false, subok: subok);
if (array.dims == null)
{
throw new ValueError("cannot broadcast a non-scalar to a scalar array");
}
if (np.anyb(np.array(newshape.iDims) < 0))
{
throw new ValueError("all elements of broadcast shape must be non-negative");
}
var toshape = NpyCoreApi.BroadcastToShape(array, newshape.iDims, newshape.iDims.Length);
var newStrides = new npy_intp[toshape.nd_m1 + 1];
Array.Copy(toshape.strides, 0, newStrides, 0, newStrides.Length);
var result = np.as_strided(array, shape: newshape.iDims, strides: newStrides);
return(result);
}