#define for_each(A,B) for(A=B; A; A=A->_next)
#define for_search(A,B,C) for_each(A,B) if(C)
/*to do: #define for_file_lines(STR,F) _NEW_F for() */
#define for_each(A,B) for(A=B; A; A=A->_next)
#define for_search(A,B,C) for_each(A,B) if(C)
/*to do: #define for_file_lines(STR,F) _NEW_F for() */