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-rw-r--r--bignum.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/bignum.c b/bignum.c
index b6cb7b6..9272816 100644
--- a/bignum.c
+++ b/bignum.c
@@ -85,7 +85,7 @@ get2comp(x, carry) /* get 2's complement */
if ((ds[RBIGNUM(x)->len-1] & (1<<(BITSPERDIG-1))) == 0) {
REALLOC_N(RBIGNUM(x)->digits, BDIGIT, ++RBIGNUM(x)->len);
ds = BDIGITS(x);
- ds[RBIGNUM(x)->len-1] = ~0;
+ ds[RBIGNUM(x)->len-1] = RBIGNUM(x)->sign ? ~0 : 1;
}
}
@@ -1055,8 +1055,8 @@ rb_big_neg(x)
if (!RBIGNUM(x)->sign) get2comp(z, Qtrue);
while (i--) ds[i] = ~ds[i];
- if (RBIGNUM(x)->sign) get2comp(z, Qfalse);
RBIGNUM(z)->sign = !RBIGNUM(z)->sign;
+ if (RBIGNUM(x)->sign) get2comp(z, Qtrue);
return bignorm(z);
}
@@ -1677,7 +1677,7 @@ rb_big_and(xx, yy)
for (; i<l2; i++) {
zds[i] = sign?0:ds2[i];
}
- if (!RBIGNUM(z)->sign) get2comp(z, Qfalse);
+ if (!RBIGNUM(z)->sign) get2comp(z, Qtrue);
return bignorm(z);
}
@@ -1734,7 +1734,7 @@ rb_big_or(xx, yy)
for (; i<l2; i++) {
zds[i] = sign?ds2[i]:(BIGRAD-1);
}
- if (!RBIGNUM(z)->sign) get2comp(z, Qfalse);
+ if (!RBIGNUM(z)->sign) get2comp(z, Qtrue);
return bignorm(z);
}
@@ -1795,7 +1795,7 @@ rb_big_xor(xx, yy)
for (; i<l2; i++) {
zds[i] = sign?ds2[i]:~ds2[i];
}
- if (!RBIGNUM(z)->sign) get2comp(z, Qfalse);
+ if (!RBIGNUM(z)->sign) get2comp(z, Qtrue);
return bignorm(z);
}