From accfd0f7a73930451574eb56a9302b4a16445ab7 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Thu, 29 May 2014 01:28:13 -0400
Subject: [PATCH] Add explicit operator bool for sol::object for even easier
 nil checking

---
 sol/object.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sol/object.hpp b/sol/object.hpp
index 9aee1b52..0889a37f 100644
--- a/sol/object.hpp
+++ b/sol/object.hpp
@@ -45,6 +45,10 @@ public:
         auto actual = lua_type(state(), -1);
         return (static_cast<int>(expected) == actual) || (expected == type::poly);
     }
+
+    explicit operator bool() const {
+        return is<nil_t>();
+    }
 };
 
 inline bool operator==(const object& lhs, const nil_t&) {