diff --git a/include/chaiscript/dispatchkit/bootstrap_stl.hpp b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
index 0ece3fd..3a67c09 100644
--- a/include/chaiscript/dispatchkit/bootstrap_stl.hpp
+++ b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
@@ -294,8 +294,12 @@ namespace chaiscript
     {
       m->add(user_type<PairType>(), type);
 
-      m->add(fun(&PairType::first), "first");
-      m->add(fun(&PairType::second), "second");
+	  
+	  typename PairType::first_type PairType::* f = &PairType::first;
+	  typename PairType::second_type PairType::* s = &PairType::second;
+
+      m->add(fun(f), "first");
+      m->add(fun(s), "second");
 
       basic_constructors<PairType>(type, m);
       m->add(constructor<PairType (const typename PairType::first_type &, const typename PairType::second_type &)>(), type);
diff --git a/include/chaiscript/language/chaiscript_engine.hpp b/include/chaiscript/language/chaiscript_engine.hpp
index f032038..0702bd9 100644
--- a/include/chaiscript/language/chaiscript_engine.hpp
+++ b/include/chaiscript/language/chaiscript_engine.hpp
@@ -538,7 +538,8 @@ namespace chaiscript
       std::streampos size = infile.tellg();
       infile.seekg(0, std::ios::beg);
 
-      std::vector<char> v(size);
+	  assert(size >= 0);
+      std::vector<char> v(static_cast<unsigned int>(size));
       infile.read(&v[0], size);
 
       std::string ret_val (v.empty() ? std::string() : std::string (v.begin(), v.end()).c_str());