From 15823a48b31befa5f623134f6d8c57a2f5a603f9 Mon Sep 17 00:00:00 2001
From: aleksanderd <aleksanderd@gmail.com>
Date: Fri, 11 Nov 2022 21:41:19 +0300
Subject: [PATCH] fix #41: Large numbers serialized incorrectly

---
 json.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/json.lua b/json.lua
index 711ef78..2956e16 100644
--- a/json.lua
+++ b/json.lua
@@ -108,7 +108,12 @@ local function encode_number(val)
   if val ~= val or val <= -math.huge or val >= math.huge then
     error("unexpected number value '" .. tostring(val) .. "'")
   end
-  return string.format("%.14g", val)
+  local intVal = math.tointeger(val)
+  if intVal == val then
+    return string.format("%d", intVal)
+  else
+    return string.format("%.14g", val)
+  end
 end