diff --git a/include/chaiscript/language/chaiscript_algebraic.hpp b/include/chaiscript/language/chaiscript_algebraic.hpp
index 5cf132dd..3e5675aa 100644
--- a/include/chaiscript/language/chaiscript_algebraic.hpp
+++ b/include/chaiscript/language/chaiscript_algebraic.hpp
@@ -55,14 +55,14 @@ namespace chaiscript
       return opers[static_cast<int>(t_oper)];
     }
 
-    static Opers to_operator(const std::string &t_str, bool t_is_unary = false) noexcept
+    constexpr static Opers to_operator(const char * const t_str, bool t_is_unary = false) noexcept
     {
 #ifdef CHAISCRIPT_MSVC
 #pragma warning(push)
 #pragma warning(disable : 4307)
 #endif
 
-      const auto op_hash = utility::fnv1a_32(t_str.c_str());
+      const auto op_hash = utility::fnv1a_32(t_str);
       switch (op_hash) {
         case utility::fnv1a_32("=="): { return Opers::equals; }
         case utility::fnv1a_32("<"): { return Opers::less_than; }
diff --git a/include/chaiscript/language/chaiscript_eval.hpp b/include/chaiscript/language/chaiscript_eval.hpp
index 23557ca1..6716dd9e 100644
--- a/include/chaiscript/language/chaiscript_eval.hpp
+++ b/include/chaiscript/language/chaiscript_eval.hpp
@@ -159,7 +159,7 @@ namespace chaiscript
     struct Fold_Right_Binary_Operator_AST_Node : AST_Node_Impl<T> {
         Fold_Right_Binary_Operator_AST_Node(const std::string &t_oper, Parse_Location t_loc, std::vector<AST_Node_Impl_Ptr<T>> t_children, Boxed_Value t_rhs) :
           AST_Node_Impl<T>(t_oper, AST_Node_Type::Binary, std::move(t_loc), std::move(t_children)),
-          m_oper(Operators::to_operator(t_oper)),
+          m_oper(Operators::to_operator(t_oper.c_str())),
           m_rhs(std::move(t_rhs))
         { }
 
@@ -204,7 +204,7 @@ namespace chaiscript
     struct Binary_Operator_AST_Node : AST_Node_Impl<T> {
         Binary_Operator_AST_Node(const std::string &t_oper, Parse_Location t_loc, std::vector<AST_Node_Impl_Ptr<T>> t_children) :
           AST_Node_Impl<T>(t_oper, AST_Node_Type::Binary, std::move(t_loc), std::move(t_children)),
-          m_oper(Operators::to_operator(t_oper))
+          m_oper(Operators::to_operator(t_oper.c_str()))
         { }
 
         Boxed_Value eval_internal(const chaiscript::detail::Dispatch_State &t_ss) const override {
@@ -420,7 +420,7 @@ namespace chaiscript
     struct Equation_AST_Node final : AST_Node_Impl<T> {
         Equation_AST_Node(std::string t_ast_node_text, Parse_Location t_loc, std::vector<AST_Node_Impl_Ptr<T>> t_children) :
           AST_Node_Impl<T>(std::move(t_ast_node_text), AST_Node_Type::Equation, std::move(t_loc), std::move(t_children)), 
-          m_oper(Operators::to_operator(this->text))
+          m_oper(Operators::to_operator(this->text.c_str()))
         { assert(this->children.size() == 2); }
 
 
@@ -1162,7 +1162,7 @@ namespace chaiscript
     struct Prefix_AST_Node final : AST_Node_Impl<T> {
         Prefix_AST_Node(std::string t_ast_node_text, Parse_Location t_loc, std::vector<AST_Node_Impl_Ptr<T>> t_children) :
           AST_Node_Impl<T>(std::move(t_ast_node_text), AST_Node_Type::Prefix, std::move(t_loc), std::move(t_children)),
-          m_oper(Operators::to_operator(this->text, true))
+          m_oper(Operators::to_operator(this->text.c_str(), true))
         { }
 
         Boxed_Value eval_internal(const chaiscript::detail::Dispatch_State &t_ss) const override{
diff --git a/include/chaiscript/language/chaiscript_optimizer.hpp b/include/chaiscript/language/chaiscript_optimizer.hpp
index 3df867f1..877cb4a7 100644
--- a/include/chaiscript/language/chaiscript_optimizer.hpp
+++ b/include/chaiscript/language/chaiscript_optimizer.hpp
@@ -241,7 +241,7 @@ namespace chaiscript {
         {
           try {
             const auto &oper = node->text;
-            const auto parsed = Operators::to_operator(oper);
+            const auto parsed = Operators::to_operator(oper.c_str());
             if (parsed != Operators::Opers::invalid) {
               const auto rhs = dynamic_cast<eval::Constant_AST_Node<T> *>(node->children[1].get())->m_value;
               if (rhs.get_type_info().is_arithmetic()) {
@@ -268,7 +268,7 @@ namespace chaiscript {
         {
           try {
             const auto &oper = node->text;
-            const auto parsed = Operators::to_operator(oper, true);
+            const auto parsed = Operators::to_operator(oper.c_str(), true);
             const auto lhs = dynamic_cast<const eval::Constant_AST_Node<T> *>(node->children[0].get())->m_value;
             const auto match = oper + node->children[0]->text;
 
@@ -308,7 +308,7 @@ namespace chaiscript {
         {
           try {
             const auto &oper = node->text;
-            const auto parsed = Operators::to_operator(oper);
+            const auto parsed = Operators::to_operator(oper.c_str());
             if (parsed != Operators::Opers::invalid) {
               const auto lhs = dynamic_cast<const eval::Constant_AST_Node<T> &>(*node->children[0]).m_value;
               const auto rhs = dynamic_cast<const eval::Constant_AST_Node<T> &>(*node->children[1]).m_value;