udf help

brusly

hello

i tried to interpret this udf but it gives parse error?can any one give me some sujjestion?this program is in udf manuel fluent 6.2.

#include "udf.h"

DEFINE_INIT(my_init_function, domain) { cell_t c; Thread *thread; real xc[ND_ND];

thread_loop_c (thread,domain)

{

begin_c_loop_all (c,thread)

{

C_CENTROID(xc,c,thread);

if (sqrt(ND_SUM(pow(xc[0] - 0.5,2.),

pow(xc[1] - 0.5,2.),

pow(xc[2] - 0.5,2.))) < 0.25)

C_T(c,thread) = 400.;

else

C_T(c,thread) = 300.;

}

end_c_loop_all (c,thread)

} }

thank you