From d476a5b4e7ef8fd0d31f9f6072886580ebdd6053 Mon Sep 17 00:00:00 2001
From: Daniel Scharrer <daniel@constexpr.org>
Date: Thu, 1 Mar 2012 15:08:09 +0100
Subject: [PATCH] Don't assume enums are unsigned even if the range allows it.

---
 src/util/enum.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/enum.hpp b/src/util/enum.hpp
index 45b05a9..fbb9d89 100644
--- a/src/util/enum.hpp
+++ b/src/util/enum.hpp
@@ -70,7 +70,7 @@ struct enum_names {
 template <class Enum>
 typename boost::enable_if_c<enum_names<Enum>::named, std::ostream &>::type
 operator<<(std::ostream & os, Enum value) {
-	if(value < enum_names<Enum>::count) {
+	if(value >= 0 && size_t(value) < enum_names<Enum>::count) {
 		return os << enum_names<Enum>::names[value];
 	} else {
 		return os << "(unknown:" << int(value) << ')';