# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 1579270258 -32400
#      Fri Jan 17 23:10:58 2020 +0900
# Node ID 5856113283730ea67c4efc4c02222256c845fc54
# Parent  1b47d15757f00324a33c2748ac4ba42cd99f8669
manage ui instance by unique_ptr

diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # QtCreator supports the following variables for Android, which are identical to qmake Android variables.
diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -4,16 +4,13 @@
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
-    , ui(new Ui::MainWindow)
+    , ui_(std::make_unique<Ui::MainWindow>())
 {
-    ui->setupUi(this);
+    ui_->setupUi(this);
 
     auto *model = new QStringListModel({"Foo", "Bar", "Baz"}, this);
-    ui->treeView->setModel(model);
+    ui_->treeView->setModel(model);
 }
 
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
+MainWindow::~MainWindow() = default;
 
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -2,6 +2,7 @@
 #define MAINWINDOW_H
 
 #include <QMainWindow>
+#include <memory>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
@@ -13,9 +14,9 @@
 
 public:
     MainWindow(QWidget *parent = nullptr);
-    ~MainWindow();
+    ~MainWindow() override;
 
 private:
-    Ui::MainWindow *ui;
+    std::unique_ptr<Ui::MainWindow> ui_;
 };
 #endif // MAINWINDOW_H