From c61a9071ae9410daa629246c46a24165626f992b Mon Sep 17 00:00:00 2001
From: Niels Lohmann <mail@nlohmann.me>
Date: Sat, 29 Sep 2018 11:50:14 +0200
Subject: [PATCH] :rotating_light: fixed a compilation issue with ICPC #755

Closes #1222
---
 include/nlohmann/detail/output/serializer.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/nlohmann/detail/output/serializer.hpp b/include/nlohmann/detail/output/serializer.hpp
index de3676ac5..e2655f049 100644
--- a/include/nlohmann/detail/output/serializer.hpp
+++ b/include/nlohmann/detail/output/serializer.hpp
@@ -442,7 +442,7 @@ class serializer
             return;
         }
 
-        const bool is_negative = (x <= 0) and (x != 0);  // see issue #755
+        const bool is_negative = not (x >= 0);  // see issue #755
         std::size_t i = 0;
 
         while (x != 0)