Clean up, add zerror and zperror, fix bugs and add more tests

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/zadd.c b/src/zadd.c
index 6ab3ae8..73e5b42 100644
--- a/src/zadd.c
+++ b/src/zadd.c
@@ -49,8 +49,8 @@ zadd_unsigned(z_t a, z_t b, z_t c)
 		a->chars[i] += addend[i] + carry[i & 1];
 	}
 
-	while (carry[~i & 1]) {
-		carry[i & 1] = a->chars[i] == ZAHL_CHAR_MAX;
+	while (carry[i & 1]) {
+		carry[~i & 1] = a->chars[i] == ZAHL_CHAR_MAX;
 		a->chars[i++] += 1;
 	}