diff options
Diffstat (limited to 'bignum.c')
-rw-r--r-- | bignum.c | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -1243,7 +1243,8 @@ bigdivmod(x, y, divp, modp) VALUE mod; bigdivrem(x, y, divp, &mod); - if (RBIGNUM(x)->sign != RBIGNUM(y)->sign && RBIGNUM(mod)->len > 0) { + if (RBIGNUM(x)->sign != RBIGNUM(y)->sign && + RBIGNUM(mod)->len > 0 && BDIGITS(mod)[0] != 0) { if (divp) *divp = bigadd(*divp, rb_int2big(1), 0); if (modp) *modp = bigadd(mod, y, 1); } @@ -1603,6 +1604,9 @@ rb_big_rshift(x, y) xds = BDIGITS(x); i = RBIGNUM(x)->len; j = i - s1; z = bignew(j, RBIGNUM(x)->sign); + if (!RBIGNUM(x)->sign) { + num = ((BDIGIT_DBL)~0) << BITSPERDIG; + } zds = BDIGITS(z); while (i--, j--) { num = (num | xds[i]) >> s2; |