@@ -61,7 +61,7 @@ unsigned long bytesToInt (const std::string &bytes)

 class token_generator_impl : public token_generator_ifc

 {

 private:

-    const sys_time &clock;

+    const sys_time clock;

     unsigned int code_digits;

     const std::string key;

@@ -99,7 +99,7 @@ private:

     }

 public:

-    token_generator_impl (const sys_time &clock,

+    token_generator_impl (const sys_time clock,

                           const std::string &key,

                           const int code_digits) :

         clock (clock), code_digits (code_digits),

@@ -122,10 +122,9 @@ public:

 // Generator goes here....

 totp_generator::totp_generator (

-    const sys_time &clock,

+    const sys_time clock,

     const std::string &key_c,

     const int code_digits) :

     delegate_ (std::make_shared<token_generator_impl> (clock, key_c,

                code_digits))

 {}

-

@@ -49,10 +49,9 @@ public:

         delegate_ (delegate_)

     {}

-    totp_generator (const sys_time &clock,

+    totp_generator (const sys_time clock,

                     const std::string &key_c,

                     const int code_digits);

 };

 #endif

-