bd               1922 src/number.c       ScmObj bd = SCM_BIGNUMP(d)? d : Scm_MakeBignumFromSI(SCM_INT_VALUE(d));
bd               1924 src/number.c       return Scm_BignumCmp3U(SCM_BIGNUM(bx), SCM_BIGNUM(bd), SCM_BIGNUM(by));