4store reported query issue C test

rasqal-parsing.c

/*
  gcc -g -Wall -o rasqal-parsing rasqal-parsing.c `pkg-config rasqal --cflags --libs`

  When this sequence of queries is parsed inside 4store this error is seen:

  parser error: syntax error, unexpected $end, expecting integer literal on line 1 parser error: rasqal_new_typed_literal failed on line 1

*/
#include <rasqal.h>

static void
write_query_sparql(rasqal_world* world, rasqal_query* query, FILE* stream) {
  raptor_iostream* iostr;
  raptor_world* raptor_world_ptr = rasqal_world_get_raptor(world);

  iostr = raptor_new_iostream_to_file_handle(raptor_world_ptr, stream);
  rasqal_query_write(iostr, query, NULL, NULL);
  raptor_free_iostream(iostr);
}


int
main(int argc, char* argv[])
{
    static const unsigned char* query1 = 
      (const unsigned char*)"SELECT (?o as ?o2) WHERE { ?s ?p ?o } ORDER BY ?o"
      ;
    static const unsigned char* query2 = 
      (const unsigned char*)"SELECT ?s WHERE { ?s ?p ?o } LIMIT 1"
    ;
    rasqal_world *world;

    fprintf(stdout, "Initialising world\n");
    world = rasqal_new_world();

    fprintf(stdout, "Query 1: '%s'\n", query1);
    rasqal_query *q1 = rasqal_new_query(world, "sparql", NULL);
    rasqal_query_prepare(q1, query1, NULL);
    if(1)
      write_query_sparql(world, q1, stdout);
    else
      rasqal_query_print(q1, stdout);
    rasqal_free_query(q1); q1 = NULL;

    fprintf(stdout, "Query 2: '%s'\n", query2);
    rasqal_query *q2 = rasqal_new_query(world, "sparql", NULL);
    rasqal_query_prepare(q2, query2, NULL);
    if(1)
      write_query_sparql(world, q2, stdout);
    else
      rasqal_query_print(q2, stdout);
    rasqal_free_query(q2); q2 = NULL;

    fprintf(stdout, "Freeing world\n");
    rasqal_free_world(world);

    return 0;
}