From 9264bbbc52ed6b7e1f9af95e129cb1f7e68c355e Mon Sep 17 00:00:00 2001
From: Yao Yue <thinkingfish@gmail.com>
Date: Sat, 1 Apr 2017 16:35:06 -0700
Subject: [PATCH] Zero byte (#147) (emergency fix needed for pelikan)

* buf_write return immediately on 0 byte

* fix bug
---
 include/buffer/cc_buf.h | 4 ++++
 src/cc_print.c          | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/buffer/cc_buf.h b/include/buffer/cc_buf.h
index f0d7924db..4fe111dd3 100644
--- a/include/buffer/cc_buf.h
+++ b/include/buffer/cc_buf.h
@@ -169,6 +169,10 @@ buf_read(char *dst, struct buf *src, uint32_t count)
 static inline uint32_t
 buf_write(struct buf *dst, char *src, uint32_t count)
 {
+    if (count == 0) {
+        return 0;
+    }
+
     ASSERT(dst != NULL && src != NULL);
 
     uint32_t len = MIN(buf_wsize(dst), count);
diff --git a/src/cc_print.c b/src/cc_print.c
index 22b5ee4ff..8a16430f5 100644
--- a/src/cc_print.c
+++ b/src/cc_print.c
@@ -60,7 +60,7 @@ cc_print_int64_unsafe(char *buf, int64_t n)
     }
 
     d = digits(ab);
-    _print_uint64(buf, d, n);
+    _print_uint64(buf, d, ab);
 
     return  d + (n < 0);
 }