#include <chemfiles.h>
#include <stdlib.h>

int main() {
    // [example]
    CHFL_FRAME* frame = chfl_frame();

    CHFL_TOPOLOGY* topology = chfl_topology();

    {
        // Build the topology
        CHFL_ATOM* O = chfl_atom("O");
        CHFL_ATOM* H = chfl_atom("H");

        chfl_topology_add_atom(topology, O);
        chfl_topology_add_atom(topology, H);
        chfl_topology_add_atom(topology, H);

        chfl_atom_free(O);
        chfl_atom_free(H);
    }

    chfl_frame_set_topology(frame, topology);

    chfl_topology_free(topology);
    chfl_frame_free(frame);
    // [example]
    return 0;
}
