[hcapdevi]

I am using an udf in fluent, but when using the fopen function I have a parse error in fluent, I don't know where the problem is coming from, the code seems to be right.
Thank you for your help.

#include "udf.h"
#include "mem.h"

DEFINE_EXECUTE_AT_END (execute_at_end)
{

FILE *fp;
fp = fopen("D:\\EPF\\Stage(S07)\\data.txt", "a");

int zone_ID = 8;
Thread *thread_name = Lookup_Thread(Get_Domain(1), zone_ID);

cell_t c;
begin_c_loop(c, thread_name)
{

}
end_c_loop(c, c_thread)
fclose (fp);