fix catching polymorphic types by value

[pulseview.git] / pv / toolbars / mainbar.cpp

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index b96bfbe78837325bed9c52b4eb86f35f23411a29..1797e0a43e7de836b3695cfde24cf09647b6d150 100644 (file)
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -305,7 +305,7 @@ void MainBar::update_sample_rate_selector()
        if (sr_dev->config_check(ConfigKey::SAMPLERATE, Capability::LIST)) {
                try {
                        gvar_dict = sr_dev->config_list(ConfigKey::SAMPLERATE);
-               } catch (Error error) {
+               } catch (Error& error) {
                        qDebug() << tr("Failed to get sample rate list:") << error.what();
                }
        } else {
@@ -368,7 +368,7 @@ void MainBar::update_sample_rate_selector_value()
                updating_sample_rate_ = true;
                sample_rate_.set_value(samplerate);
                updating_sample_rate_ = false;
-       } catch (Error error) {
+       } catch (Error& error) {
                qDebug() << tr("Failed to get value of sample rate:") << error.what();
        }
 }
@@ -409,7 +409,7 @@ void MainBar::update_sample_count_selector()
                        if (gvar.gobj())
                                g_variant_get(gvar.gobj(), "(tt)",
                                        &min_sample_count, &max_sample_count);
-               } catch (Error error) {
+               } catch (Error& error) {
                        qDebug() << tr("Failed to get sample limit list:") << error.what();
                }
        }
@@ -501,7 +501,7 @@ void MainBar::commit_sample_rate()
                sr_dev->config_set(ConfigKey::SAMPLERATE,
                        Glib::Variant<guint64>::create(sample_rate));
                update_sample_rate_selector();
-       } catch (Error error) {
+       } catch (Error& error) {
                qDebug() << tr("Failed to configure samplerate:") << error.what();
                return;
        }
@@ -528,7 +528,7 @@ void MainBar::commit_sample_count()
                        sr_dev->config_set(ConfigKey::LIMIT_SAMPLES,
                                Glib::Variant<guint64>::create(sample_count));
                        update_sample_count_selector();
-               } catch (Error error) {
+               } catch (Error& error) {
                        qDebug() << tr("Failed to configure sample count:") << error.what();
                        return;
                }