✨ Bunch of additions and changes

* added .pro.user to gitignore, added assignment no. 4.2, enhanced the mainwindow ui, removed the wrong .gitignore, enhanced the ExtendedVector README

.gitignore

@@ -14,6 +14,7 @@ assignments/0?/0?_?
 **Makefile
 **.idx
 **-Desktop-Debug/
+**.pro.user
 
 # latex compiling files
 **.toc

assignments/04/04_2.cpp

@@ -0,0 +1,52 @@
+#include <cctype> // for isdigit()
+#include <cmath> // for pow()
+#include <iostream>
+#include <stack>
+#include <string>
+
+using namespace std;
+
+int convert(const string &s) {
+    string split_string = s;
+    stack<int> digits;
+    int conversion = 0;
+    auto it_s = s.begin();
+    
+    for (;(*it_s == ' ') && (it_s != s.end()); it_s++); // skip all spaces
+    for (;(isdigit(*it_s)) && (it_s != s.end()); it_s++) {
+        digits.push((int) *it_s - (int) '0'); // put all decimal digits onto the stack
+    };
+    if(it_s == s.end() || *it_s == ' ') {
+        for (int i = 0; !(digits.empty()); i++) {
+            conversion += digits.top() * pow(10, i);
+            digits.pop();
+        }
+    } else {
+        // throw std::invalid_argument(s + " is not a correct int representation."); 
+        // is what I'd like to do, but I guess I couldn't return -1 then, right?
+        cout << s + " is not a correct non-negative int representation." << endl;
+        return -1;
+    }
+    return conversion;
+}
+
+void use_convert_function(const string &s) {
+    cout << s << " : " << convert(s) << endl << endl;
+}
+
+void test_convert_function() {
+    use_convert_function("0");
+    use_convert_function("128");
+    use_convert_function("+128");
+    use_convert_function("12x128");
+    use_convert_function("128 + x");
+    use_convert_function("128 Punkte");
+}
+
+int main() {
+    string s = "";
+    cout << "Please input a number: " << endl;
+    getline(cin, s);
+    use_convert_function(s);
+    return 0;
+}

assignments/04/ExtendedVector/.gitignore

@@ -1,74 +0,0 @@
-# This file is used to ignore files which are generated
-# ----------------------------------------------------------------------------
-
-*~
-*.autosave
-*.a
-*.core
-*.moc
-*.o
-*.obj
-*.orig
-*.rej
-*.so
-*.so.*
-*_pch.h.cpp
-*_resource.rc
-*.qm
-.#*
-*.*#
-core
-!core/
-tags
-.DS_Store
-.directory
-*.debug
-Makefile*
-*.prl
-*.app
-moc_*.cpp
-ui_*.h
-qrc_*.cpp
-Thumbs.db
-*.res
-*.rc
-/.qmake.cache
-/.qmake.stash
-
-# qtcreator generated files
-*.pro.user*
-CMakeLists.txt.user*
-
-# xemacs temporary files
-*.flc
-
-# Vim temporary files
-.*.swp
-
-# Visual Studio generated files
-*.ib_pdb_index
-*.idb
-*.ilk
-*.pdb
-*.sln
-*.suo
-*.vcproj
-*vcproj.*.*.user
-*.ncb
-*.sdf
-*.opensdf
-*.vcxproj
-*vcxproj.*
-
-# MinGW generated files
-*.Debug
-*.Release
-
-# Python byte code
-*.pyc
-
-# Binaries
-# --------
-*.dll
-*.exe
-

assignments/04/ExtendedVector/README.md

@@ -1,2 +1,2 @@
-Requires Qt6
+Requires Qt6. 
 You can open it in QtCreator, but you might have to manually compile the mainwindow.ui with `uic -o ui_mainwindow.h mainwindow.ui` (qt6 uic), since `qtchooser` is not supporting qt6 yet.

assignments/04/ExtendedVector/mainwindow.cpp

@@ -22,6 +22,7 @@ void parseAsDoubleVector(QString vec_string, vector<double> *vec) {
             vec->push_back(t_value);
         } else {
             throw std::invalid_argument("Please only write doubles into the Input field.");
+            return;
         }
     }
     return;

assignments/04/ExtendedVector/ui_mainwindow.h

@@ -0,0 +1,113 @@
+/********************************************************************************
+** Form generated from reading UI file 'mainwindow.ui'
+**
+** Created by: Qt User Interface Compiler version 6.4.2
+**
+** WARNING! All changes made in this file will be lost when recompiling UI file!
+********************************************************************************/
+
+#ifndef UI_MAINWINDOW_H
+#define UI_MAINWINDOW_H
+
+#include <QtCore/QVariant>
+#include <QtGui/QAction>
+#include <QtWidgets/QApplication>
+#include <QtWidgets/QDoubleSpinBox>
+#include <QtWidgets/QLabel>
+#include <QtWidgets/QLineEdit>
+#include <QtWidgets/QMainWindow>
+#include <QtWidgets/QMenu>
+#include <QtWidgets/QMenuBar>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QStatusBar>
+#include <QtWidgets/QTextBrowser>
+#include <QtWidgets/QWidget>
+
+QT_BEGIN_NAMESPACE
+
+class Ui_MainWindow
+{
+public:
+    QWidget *centralwidget;
+    QLineEdit *vec1Input;
+    QLineEdit *vec2Input;
+    QLabel *label;
+    QLabel *label_2;
+    QPushButton *okButton;
+    QTextBrowser *outputBrowser;
+    QDoubleSpinBox *factorSpinBox;
+    QLabel *label_3;
+    QMenuBar *menubar;
+    QMenu *menuIst_das_hier_gen_gender_User_Input;
+    QStatusBar *statusbar;
+
+    void setupUi(QMainWindow *MainWindow)
+    {
+        if (MainWindow->objectName().isEmpty())
+            MainWindow->setObjectName("MainWindow");
+        MainWindow->resize(571, 681);
+        centralwidget = new QWidget(MainWindow);
+        centralwidget->setObjectName("centralwidget");
+        vec1Input = new QLineEdit(centralwidget);
+        vec1Input->setObjectName("vec1Input");
+        vec1Input->setGeometry(QRect(110, 30, 391, 51));
+        vec2Input = new QLineEdit(centralwidget);
+        vec2Input->setObjectName("vec2Input");
+        vec2Input->setGeometry(QRect(110, 100, 391, 51));
+        label = new QLabel(centralwidget);
+        label->setObjectName("label");
+        label->setGeometry(QRect(30, 40, 67, 21));
+        label_2 = new QLabel(centralwidget);
+        label_2->setObjectName("label_2");
+        label_2->setGeometry(QRect(30, 110, 67, 21));
+        okButton = new QPushButton(centralwidget);
+        okButton->setObjectName("okButton");
+        okButton->setGeometry(QRect(410, 170, 91, 29));
+        outputBrowser = new QTextBrowser(centralwidget);
+        outputBrowser->setObjectName("outputBrowser");
+        outputBrowser->setGeometry(QRect(30, 220, 511, 391));
+        factorSpinBox = new QDoubleSpinBox(centralwidget);
+        factorSpinBox->setObjectName("factorSpinBox");
+        factorSpinBox->setGeometry(QRect(200, 170, 66, 29));
+        label_3 = new QLabel(centralwidget);
+        label_3->setObjectName("label_3");
+        label_3->setGeometry(QRect(110, 170, 81, 21));
+        MainWindow->setCentralWidget(centralwidget);
+        menubar = new QMenuBar(MainWindow);
+        menubar->setObjectName("menubar");
+        menubar->setGeometry(QRect(0, 0, 571, 26));
+        menuIst_das_hier_gen_gender_User_Input = new QMenu(menubar);
+        menuIst_das_hier_gen_gender_User_Input->setObjectName("menuIst_das_hier_gen_gender_User_Input");
+        MainWindow->setMenuBar(menubar);
+        statusbar = new QStatusBar(MainWindow);
+        statusbar->setObjectName("statusbar");
+        MainWindow->setStatusBar(statusbar);
+
+        menubar->addAction(menuIst_das_hier_gen_gender_User_Input->menuAction());
+
+        retranslateUi(MainWindow);
+
+        QMetaObject::connectSlotsByName(MainWindow);
+    } // setupUi
+
+    void retranslateUi(QMainWindow *MainWindow)
+    {
+        MainWindow->setWindowTitle(QCoreApplication::translate("MainWindow", "MainWindow", nullptr));
+        vec1Input->setText(QCoreApplication::translate("MainWindow", "1.2, 4.3, -2.7, -11", nullptr));
+        vec2Input->setText(QCoreApplication::translate("MainWindow", "-0.9, 4.5", nullptr));
+        label->setText(QCoreApplication::translate("MainWindow", "Vector 1", nullptr));
+        label_2->setText(QCoreApplication::translate("MainWindow", "Vector 2", nullptr));
+        okButton->setText(QCoreApplication::translate("MainWindow", "Ok", nullptr));
+        label_3->setText(QCoreApplication::translate("MainWindow", "Multiply by", nullptr));
+        menuIst_das_hier_gen_gender_User_Input->setTitle(QCoreApplication::translate("MainWindow", "Is this a good enough UI now?", nullptr));
+    } // retranslateUi
+
+};
+
+namespace Ui {
+    class MainWindow: public Ui_MainWindow {};
+} // namespace Ui
+
+QT_END_NAMESPACE
+
+#endif // UI_MAINWINDOW_H