how to fill array of custom user structures ?

for example needs something that,

`
struct Box {
float3 v0;
float3 v1;

Box() {
v0 = float3(M_INF, M_INF, M_INF);
v1 = float3(-M_INF, -M_INF, -M_INF);
}
};
__declspec(align(16))
struct Node {
int index;
int offset;
Box box;

Node() {
index = -1;
}
};

`boost::compute::vector nodes(10, context);`

Node node_default;

boost::compute::fill(nodes.begin(), nodes.end(),
node_default, // compile error with that
queue);
`

how to fill array "nodes" with value "node_default" ?