- scm_from_int (main_part_.num ()),
- scm_from_int (main_part_.den ()),
- scm_from_int (grace_part_.num ()),
- scm_from_int (grace_part_.den ()));
+ scm_from_int64 (main_part_.num ()),
+ scm_from_int64 (main_part_.den ()),
+ scm_from_int64 (grace_part_.num ()),
+ scm_from_int64 (grace_part_.den ()));