X-Git-Url: https://mattmccutchen.net/bigint/bigint.git/blobdiff_plain/b1f5f69ee6a55e326f1336a3967513fd22f57d7f..918d66f23e6b2528010db6f121e229f488fe3410:/BigUnsigned.cc

diff --git a/BigUnsigned.cc b/BigUnsigned.cc
index a2ab58c..10c47db 100644
--- a/BigUnsigned.cc
+++ b/BigUnsigned.cc
@@ -752,8 +752,10 @@ void BigUnsigned::operator ++() {
 	}
 	if (carry) {
 		// Matt fixed a bug 2004.12.24: next 2 lines used to say allocateAndCopy(len + 1)
+		// Matt fixed another bug 2006.04.24:
+		// old number only has len blocks, so copy before increasing length
+		allocateAndCopy(len + 1);
 		len++;
-		allocateAndCopy(len);
 		blk[i] = 1;
 	}
 }