whence_scm 3618 src/extlib.c ScmObj whence_scm; whence_scm 3630 src/extlib.c if (SCM_NULLP(SCM_OPTARGS)) whence_scm = SCM_MAKE_INT(SEEK_SET); whence_scm 3632 src/extlib.c whence_scm = SCM_CAR(SCM_OPTARGS); whence_scm 3635 src/extlib.c if (!SCM_INTP(whence_scm)) Scm_Error("small integer required, but got %S", whence_scm); whence_scm 3636 src/extlib.c whence = SCM_INT_VALUE(whence_scm);