Adding array elements to record in a union

[Saptarshi Guha]

Hello,

Below is the avro file. I'm trying to write an object of the form
{
  "c": {"name":"int",....}
}

Here's how i go about it 

  // aschema contains the schema for [1]
  avro_value_iface_t  *robject_iface = avro_generic_class_from_schema(*aschema);
  avro_value_t rvalue,field_c,branch,branch_v;
  // New container, and go to element "c" (ie. index==1)
  avro_generic_value_new(robject_iface, &rvalue);
  avro_value_get_by_index(&rvalue, 1, &field_c, NULL);
  // No go into discriminant == 1 (integers) 
  avro_value_set_branch(&field_c,1,&branch); 
  // This is a record, so access it's 'v' field
  avro_value_get_by_index(&branch,0,&branch_v,NULL);
  for(int i=0;i < LENGTH; i++){
        avro_value_t  element;
        size_t  new_index;
        avro_value_append(&branch_v, &element, &new_index);
        avro_value_set_int(&element,robj[i]);
  }

As expected, branch_v when displayed as JSON shows [1,2,3 ...] (contents of 
robj)
But the JSON of rvalue is empty ... (and it's size 'avro_value_sizeof' is 0).

What am i doing wrong?

Regards
Saptarshi
Avro 1.7

[1]
{
    "namespace": "robjects.avro",
    "type": "record",
    "name": "robject",
    "fields": [
        {"name":"a" ,"type":["null",{"type":"map"  
,"values":"robject"}],"comments":"Attributes"},
        {"name":"c","type":[
            "null",
            {"name":"int", "type":"record" 
,"fields":[{"name":"v","type":{"type":"array" ,"items":"int"}}]},
            {"name":"real","type":"record" 
,"fields":[{"name":"v","type":{"type":"array" ,"items":"double"}}]},
            {"name":"list","type":"record" 
,"fields":[{"name":"v","type":{"type":"array" ,"items":"robject"}}]}
            ]
         ,"comments": "Content"}
    ]
}