1 files changed, 11 insertions, 4 deletions
diff --git a/src/select.cpp b/src/select.cpp
index be5cd47..59eb83e 100644
--- a/src/select.cpp
+++ b/src/select.cpp
@@ -65,6 +65,10 @@ zmq::select_t::handle_t zmq::select_t::add_fd (fd_t fd_, i_poll_events *events_)
     fd_entry_t entry = {fd_, events_};
     fds.push_back (entry);
 
+    //  Ensure we do not attempt to select () on more than FD_SETSIZE
+    //  file descriptors.
+    zmq_assert (fds.size () <= FD_SETSIZE);
+
     //  Start polling on errors.
     FD_SET (fd_, &source_set_err);
 
@@ -217,10 +221,13 @@ void zmq::select_t::loop ()
 
         //  Destroy retired event sources.
         if (retired) {
-            for (fd_set_t::size_type i = 0; i < fds.size (); i ++) {
-                if (fds [i].fd == retired_fd) {
-                    fds.erase (fds.begin () + i);
-                    i --;
+            fd_set_t::iterator it = fds.begin();
+            while (it != fds.end()) {
+                if (it->fd == retired_fd) {
+                    it = fds.erase(it);
+                }
+                else {
+                    it++;
                 }
             }
             retired = false;