fix catching polymorphic types by value

[pulseview.git] / pv / session.cpp

diff --git a/pv/session.cpp b/pv/session.cpp
index b1ce14680bbec848f6ae92fd3ec4010094d8320c..008ee6a282cc3ba326abe6b106a503576d7d753c 100644 (file)
--- a/pv/session.cpp
+++ b/pv/session.cpp
@@ -521,7 +521,7 @@ void Session::load_file(QString file_name,
                                new devices::SessionFile(
                                        device_manager_.context(),
                                        file_name.toStdString())));
-       } catch (Error e) {
+       } catch (Error& e) {
                main_bar_->session_error(tr("Failed to load ") + file_name, e.what());
                set_default_device();
                main_bar_->update_device_list();
@@ -732,7 +732,7 @@ shared_ptr<data::DecodeSignal> Session::add_decode_signal()
                // Add the decode signal to all views
                for (shared_ptr<views::ViewBase> view : views_)
                        view->add_decode_signal(signal);
-       } catch (runtime_error e) {
+       } catch (runtime_error& e) {
                remove_decode_signal(signal);
                return nullptr;
        }
@@ -934,7 +934,7 @@ void Session::sample_thread_proc(function<void (const QString)> error_handler)
 
        try {
                device_->start();
-       } catch (Error e) {
+       } catch (Error& e) {
                error_handler(e.what());
                return;
        }
@@ -944,7 +944,7 @@ void Session::sample_thread_proc(function<void (const QString)> error_handler)
 
        try {
                device_->run();
-       } catch (Error e) {
+       } catch (Error& e) {
                error_handler(e.what());
                set_capture_state(Stopped);
                return;
@@ -1253,7 +1253,7 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
        case SR_DF_LOGIC:
                try {
                        feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
-               } catch (bad_alloc) {
+               } catch (bad_alloc&) {
                        out_of_memory_ = true;
                        device_->stop();
                }
@@ -1262,7 +1262,7 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
        case SR_DF_ANALOG:
                try {
                        feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
-               } catch (bad_alloc) {
+               } catch (bad_alloc&) {
                        out_of_memory_ = true;
                        device_->stop();
                }