sqlbrowser example: use unique_ptr to hold m_ui

The old code used manual memory mangement (raw new/delete) to
(de)allocate the Ui struct. This is so 80s.

Use an owning smart pointer to manage the memory. Ordinarily, this
would have been QScopedPointer, but seeing as that doesn't have a
create() method to hide the raw new, use std::unique_ptr and
std::make_unique() instead.

Amends 2690822428deec4f0c08f4d118d69a7c6036369e.

Pick-to: 6.9 6.8
Change-Id: Icabb9154eb38630855e14094b958af0214516f6b
Reviewed-by: Volker Hilsheimer <[email protected]>

1 files changed, 2 insertions, 4 deletions

diff --git a/examples/sql/sqlbrowser/qsqlconnectiondialog.cpp b/examples/sql/sqlbrowser/qsqlconnectiondialog.cpp
index 21c22b84d9b..9f6b8c8169a 100644
--- a/examples/sql/sqlbrowser/qsqlconnectiondialog.cpp
+++ b/examples/sql/sqlbrowser/qsqlconnectiondialog.cpp
@@ -11,7 +11,7 @@
 
 QSqlConnectionDialog::QSqlConnectionDialog(QWidget *parent)
     : QDialog(parent)
-    , m_ui(new Ui::QSqlConnectionDialogUi)
+    , m_ui{std::make_unique<Ui::QSqlConnectionDialogUi>()}
 {
     m_ui->setupUi(this);
 
@@ -24,9 +24,7 @@ QSqlConnectionDialog::QSqlConnectionDialog(QWidget *parent)
 }
 
 QSqlConnectionDialog::~QSqlConnectionDialog()
-{
-    delete m_ui;
-}
+    = default;
 
 QString QSqlConnectionDialog::driverName() const
 {