1 files changed, 3 insertions, 3 deletions
diff --git a/bignum.c b/bignum.c
index 5050b50218..c9300b8d6c 100644
--- a/bignum.c
+++ b/bignum.c
@@ -165,7 +165,7 @@ rb_int2inum(n)
 
 VALUE
 rb_str2inum(str, base)
-    char *str;
+    const char *str;
     int base;
 {
     char sign = 1, c;
@@ -1000,7 +1000,7 @@ rb_big_and(x, y)
 	ds2 = BDIGITS(y);
 	sign = RBIGNUM(x)->sign;
     }
-    z = bignew(l2, RBIGNUM(x)->sign && RBIGNUM(y)->sign);
+    z = bignew(l2, RBIGNUM(x)->sign || RBIGNUM(y)->sign);
     zds = BDIGITS(z);
 
     for (i=0; i<l1; i++) {
@@ -1051,7 +1051,7 @@ rb_big_or(x, y)
 	ds2 = BDIGITS(y);
 	sign = RBIGNUM(x)->sign;
     }
-    z = bignew(l2, RBIGNUM(x)->sign || RBIGNUM(y)->sign);
+    z = bignew(l2, RBIGNUM(x)->sign && RBIGNUM(y)->sign);
     zds = BDIGITS(z);
 
     for (i=0; i<l1; i++) {