Scm_Round        2192 src/gauche.h   SCM_EXTERN ScmObj Scm_Round(ScmObj num, int mode);
Scm_Round         703 src/stdlib.c    SCM_RESULT = (Scm_Round(v, SCM_ROUND_FLOOR));
Scm_Round         722 src/stdlib.c    SCM_RESULT = (Scm_Round(v, SCM_ROUND_CEIL));
Scm_Round         741 src/stdlib.c    SCM_RESULT = (Scm_Round(v, SCM_ROUND_TRUNC));
Scm_Round         760 src/stdlib.c    SCM_RESULT = (Scm_Round(v, SCM_ROUND_ROUND));