Scm_U16VectorRef  282 ext/uvector/gauche/uvector.h extern ScmObj Scm_U16VectorRef(ScmU16Vector *vec, int index, ScmObj fallback);
Scm_U16VectorRef 1481 ext/uvector/uvlib.c SCM_RETURN(Scm_U16VectorRef(v, i, fallback));