From 0e412312985079ab5b1e80f301d82830391f0371 Mon Sep 17 00:00:00 2001
From: Cloud Wu <cloudwu@gmail.com>
Date: Wed, 4 Jul 2018 15:10:32 +0800
Subject: [PATCH] fix #857

---
 lualib/skynet/datasheet/dump.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lualib/skynet/datasheet/dump.lua b/lualib/skynet/datasheet/dump.lua
index 7e586e13..b93512f0 100644
--- a/lualib/skynet/datasheet/dump.lua
+++ b/lualib/skynet/datasheet/dump.lua
@@ -59,7 +59,7 @@ function ctd.dump(root)
 				local index = dump_table(v)
 				return '\4', string.pack("<i4", index-1)
 			elseif t == "number" then
-				if math.tointeger(v) then
+				if math.tointeger(v) and v <= 0x7FFFFFFF and v >= -(0x7FFFFFFF+1) then
 					return '\1', string.pack("<i4", v)
 				else
 					return '\2', string.pack("<f",v)