Update to latest with more no exceptions

Author: jonpas

zmq.hpp

@@ -556,7 +556,7 @@ class message_t
             THROW_ERROR_T;
         memcpy(data(), data_, size_);
     }
-    
+
     void rebuild(const std::string &str)
     {
         rebuild(str.data(), str.size());
@@ -2731,7 +2731,7 @@ template<typename T = no_user_data> class poller_t
     void remove(fd_t fd)
     {
         if (0 != zmq_poller_remove_fd(poller_ptr.get(), fd)) {
-            throw error_t();
+            THROW_ERROR_T;
         }
     }
 
@@ -2749,7 +2749,7 @@ template<typename T = no_user_data> class poller_t
         if (0
             != zmq_poller_modify_fd(poller_ptr.get(), fd,
                                  static_cast<short>(events))) {
-            throw error_t();
+            THROW_ERROR_T;
         }
     }
 
@@ -2809,7 +2809,7 @@ template<typename T = no_user_data> class poller_t
         if (0
             != zmq_poller_add_fd(poller_ptr.get(), fd, user_data,
                                  static_cast<short>(events))) {
-            throw error_t();
+            THROW_ERROR_T;
         }
     }
 };

zmq_addon.hpp

@@ -810,11 +810,20 @@ class active_poller_t
         const poller_ref_t ref{fd};
 
         if (!handler)
+#ifndef CPPZMQ_NO_CPP_EXCEPTIONS
             throw std::invalid_argument("null handler in active_poller_t::add (fd)");
+#else
+            std::abort();
+#endif
         auto ret = handlers.emplace(
           ref, std::make_shared<handler_type>(std::move(handler)));
         if (!ret.second)
+#ifndef CPPZMQ_NO_CPP_EXCEPTIONS
             throw error_t(EINVAL); // already added
+#else
+            std::abort();
+#endif
+#ifndef CPPZMQ_NO_CPP_EXCEPTIONS
         try {
             base_poller.add(fd, events, ret.first->second.get());
             need_rebuild = true;
@@ -824,7 +833,10 @@ class active_poller_t
             handlers.erase(ref);
             throw;
         }
-
+#else
+        base_poller.add(fd, events, ret.first->second.get());
+        need_rebuild = true;
+#endif
     }
 
     void remove(zmq::socket_ref socket)