From f9722af3df6dafa27c7dc956b2c6ba96a8cf8324 Mon Sep 17 00:00:00 2001
From: Megvii Engine Team <megengine@megvii.com>
Date: Wed, 1 Sep 2021 22:10:50 +0800
Subject: [PATCH] fix(src/json): fix parsing error when inf is dumped as a
 Number

GitOrigin-RevId: 62cfba48c00449a8709525e0131564bd6e85b1f8
---
 src/core/impl/utils/json.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/core/impl/utils/json.cpp b/src/core/impl/utils/json.cpp
index c2a40281..7172ee75 100644
--- a/src/core/impl/utils/json.cpp
+++ b/src/core/impl/utils/json.cpp
@@ -52,6 +52,14 @@ void Value::writeto_fpath(const char* fout_path, int indent) const {
 }
 
 void Number::writeto(std::string& fout, int) const {
+    if (std::isinf(m_val)){
+        fout += "\"inf\"";
+        return ;
+    }
+    if (std::isnan(m_val)){
+        fout += "\"nan\"";
+        return ;
+    }
     static char fmt[16];
     static Spinlock fmt_mtx;
     if (!fmt[sizeof(fmt) - 1]) {
-- 
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