From d45e6116f5bdff5964256cd0e7c7523a2dcb08c3 Mon Sep 17 00:00:00 2001
From: Peter Gerwinski <peter.gerwinski@hs-bochum.de>
Date: Sat, 8 Oct 2016 11:36:31 +0200
Subject: [PATCH] =?UTF-8?q?Einf=C3=BChrung=20in=20C++,=2023.6.2016?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
20160623/es-20160623.txt | 22 +++++++++++++++++++
20160623/exceptions-0.cpp | 19 +++++++++++++++++
20160623/exceptions-1.cpp | 21 ++++++++++++++++++
20160623/lists-1.cpp | 25 ++++++++++++++++++++++
20160623/lists-2.cpp | 31 +++++++++++++++++++++++++++
20160623/lists-3.cpp | 39 +++++++++++++++++++++++++++++++++
20160623/lists-4.cpp | 45 +++++++++++++++++++++++++++++++++++++++
20160623/objects-25.cpp | 26 ++++++++++++++++++++++
20160623/pointers-1.cpp | 18 ++++++++++++++++
20160623/pointers-1a.c | 17 +++++++++++++++
20160623/pointers-2.cpp | 18 ++++++++++++++++
20160623/pointers-3.cpp | 18 ++++++++++++++++
20160623/pointers-4.cpp | 20 +++++++++++++++++
20160623/pointers-5.cpp | 20 +++++++++++++++++
20160623/pointers-6.cpp | 20 +++++++++++++++++
20160623/pointers-7.cpp | 20 +++++++++++++++++
20160623/stl-1.cpp | 17 +++++++++++++++
20160623/stl-2.cpp | 17 +++++++++++++++
20160623/stl-2a.cpp | 11 ++++++++++
20160623/stl-3.cpp | 17 +++++++++++++++
20160623/stl-4.cpp | 17 +++++++++++++++
20160623/stl-5.cpp | 17 +++++++++++++++
22 files changed, 475 insertions(+)
create mode 100644 20160623/es-20160623.txt
create mode 100644 20160623/exceptions-0.cpp
create mode 100644 20160623/exceptions-1.cpp
create mode 100644 20160623/lists-1.cpp
create mode 100644 20160623/lists-2.cpp
create mode 100644 20160623/lists-3.cpp
create mode 100644 20160623/lists-4.cpp
create mode 100644 20160623/objects-25.cpp
create mode 100644 20160623/pointers-1.cpp
create mode 100644 20160623/pointers-1a.c
create mode 100644 20160623/pointers-2.cpp
create mode 100644 20160623/pointers-3.cpp
create mode 100644 20160623/pointers-4.cpp
create mode 100644 20160623/pointers-5.cpp
create mode 100644 20160623/pointers-6.cpp
create mode 100644 20160623/pointers-7.cpp
create mode 100644 20160623/stl-1.cpp
create mode 100644 20160623/stl-2.cpp
create mode 100644 20160623/stl-2a.cpp
create mode 100644 20160623/stl-3.cpp
create mode 100644 20160623/stl-4.cpp
create mode 100644 20160623/stl-5.cpp
diff --git a/20160623/es-20160623.txt b/20160623/es-20160623.txt
new file mode 100644
index 0000000..c8baae0
--- /dev/null
+++ b/20160623/es-20160623.txt
@@ -0,0 +1,22 @@
+Software-Entwicklung für eingebettete Systeme
+=============================================
+
+Einführung in C++
+~~~~~~~~~~~~~~~~~
+:) Streams: überladener Operator "<<"
+:) Objektorientierte Programmierung:
+ :) virtuelle Methoden
+ :) Konstruktoren
+ :) Vererbung und Polymorphie
+ :) Zugriffsrechte
+ :) Destruktoren
+:) Referenzen
+:) Templates
+:) STL
+:) auto-Typen
+:) spezielle Zeiger
+:) Exceptions
+
+Spezielle Zeiger
+~~~~~~~~~~~~~~~~
+Problem: Zeiger auf Objektinstanz; der Zeiger hat begrenzte Gültigkeit
diff --git a/20160623/exceptions-0.cpp b/20160623/exceptions-0.cpp
new file mode 100644
index 0000000..6319e0e
--- /dev/null
+++ b/20160623/exceptions-0.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+
+using namespace std;
+
+int main ()
+{
+ int a = 42;
+ int b = 0;
+ if (b == 0)
+ {
+ cout << "Irgendwas ist schiefgelaufen: Ganzzahldivision durch Null" << endl;
+ }
+ else
+ {
+ int c = a / b;
+ cout << "c = " << c << endl;
+ }
+ return 0;
+}
diff --git a/20160623/exceptions-1.cpp b/20160623/exceptions-1.cpp
new file mode 100644
index 0000000..72db25a
--- /dev/null
+++ b/20160623/exceptions-1.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+
+using namespace std;
+
+int main ()
+{
+ try
+ {
+ int a = 42;
+ int b = 0;
+ if (b == 0)
+ throw "Ganzzahldivision durch Null";
+ int c = a / b;
+ cout << "c = " << c << endl;
+ }
+ catch (const char *msg)
+ {
+ cout << "Irgendwas ist schiefgelaufen: " << msg << endl;
+ }
+ return 0;
+}
diff --git a/20160623/lists-1.cpp b/20160623/lists-1.cpp
new file mode 100644
index 0000000..55a8f05
--- /dev/null
+++ b/20160623/lists-1.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+
+using namespace std;
+
+struct node
+{
+ int content;
+ node *next;
+};
+
+int main ()
+{
+ node A, B, C, D;
+ A.content = 2;
+ A.next = &B;
+ B.content = 3;
+ B.next = &C;
+ C.content = 5;
+ C.next = &D;
+ D.content = 7;
+ D.next = NULL;
+ for (node *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ return 0;
+}
diff --git a/20160623/lists-2.cpp b/20160623/lists-2.cpp
new file mode 100644
index 0000000..a994f5d
--- /dev/null
+++ b/20160623/lists-2.cpp
@@ -0,0 +1,31 @@
+#include <iostream>
+
+using namespace std;
+
+struct node
+{
+ int content;
+ node *next;
+};
+
+int main ()
+{
+ node A, B, C, D;
+ A.content = 2;
+ A.next = &B;
+ B.content = 3;
+ B.next = &C;
+ C.content = 5;
+ C.next = &D;
+ D.content = 7;
+ D.next = NULL;
+ for (node *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ node BO;
+ BO.content = 4;
+ BO.next = &C;
+ B.next = &BO;
+ for (node *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ return 0;
+}
diff --git a/20160623/lists-3.cpp b/20160623/lists-3.cpp
new file mode 100644
index 0000000..b8a764d
--- /dev/null
+++ b/20160623/lists-3.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+
+using namespace std;
+
+class node
+{
+ public:
+ int content;
+ node *next;
+ void insertAfter (node *newNode);
+};
+
+void node::insertAfter (node *newNode)
+{
+ if (newNode)
+ newNode->next = next;
+ next = newNode;
+}
+
+int main ()
+{
+ node A, B, C, D;
+ A.content = 2;
+ A.next = &B;
+ B.content = 3;
+ B.next = &C;
+ C.content = 5;
+ C.next = &D;
+ D.content = 7;
+ D.next = NULL;
+ for (node *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ node BO;
+ BO.content = 4;
+ B.insertAfter (&BO);
+ for (node *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ return 0;
+}
diff --git a/20160623/lists-4.cpp b/20160623/lists-4.cpp
new file mode 100644
index 0000000..40081dd
--- /dev/null
+++ b/20160623/lists-4.cpp
@@ -0,0 +1,45 @@
+#include <iostream>
+
+using namespace std;
+
+template <typename contentType> class node
+{
+ public:
+ contentType content;
+ node *next;
+ void insertAfter (node *newNode)
+ {
+ if (newNode)
+ newNode->next = next;
+ next = newNode;
+ }
+};
+
+int main ()
+{
+ node <int> A, B, C, D;
+ A.content = 2;
+ A.next = &B;
+ B.content = 3;
+ B.next = &C;
+ C.content = 5;
+ C.next = &D;
+ D.content = 7;
+ D.next = NULL;
+ for (node <int> *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ node <int> BO;
+ BO.content = 4;
+ B.insertAfter (&BO);
+ for (node <int> *p = &A; p; p = p->next)
+ cout << p->content << endl;
+ node <string> E, F;
+ E.content = "Hello, ";
+ E.next = NULL;
+ F.content = "world!";
+ F.next = NULL;
+ E.insertAfter (&F);
+ for (node <string> *p = &E; p; p = p->next)
+ cout << p->content << endl;
+ return 0;
+}
diff --git a/20160623/objects-25.cpp b/20160623/objects-25.cpp
new file mode 100644
index 0000000..a6b15cd
--- /dev/null
+++ b/20160623/objects-25.cpp
@@ -0,0 +1,26 @@
+#include <iostream>
+
+using namespace std;
+
+class Bewirker
+{
+ public:
+ Bewirker ();
+ ~Bewirker ();
+};
+
+Bewirker::Bewirker ()
+{
+ cout << "Raumfahrzeug wird startbereit gemacht ... Moment ..." << endl;
+}
+
+Bewirker::~Bewirker ()
+{
+ cout << "Raumfahrzeug wird wieder transportfähig gemacht ... Moment ..." << endl;
+}
+
+int main ()
+{
+ Bewirker SaturnV;
+ return 0;
+}
diff --git a/20160623/pointers-1.cpp b/20160623/pointers-1.cpp
new file mode 100644
index 0000000..518b0f6
--- /dev/null
+++ b/20160623/pointers-1.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+using namespace std;
+
+void some_function ()
+{
+ int *p = new int[1];
+ *p = 42;
+ /* ... */
+ cout << *p << endl;
+ delete p;
+}
+
+int main ()
+{
+ some_function ();
+ return 0;
+}
diff --git a/20160623/pointers-1a.c b/20160623/pointers-1a.c
new file mode 100644
index 0000000..85deeb3
--- /dev/null
+++ b/20160623/pointers-1a.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void some_function (void)
+{
+ int *p = malloc (sizeof (int));
+ *p = 42;
+ /* ... */
+ printf ("%d\n", *p);
+ free (p);
+}
+
+int main (void)
+{
+ some_function ();
+ return 0;
+}
diff --git a/20160623/pointers-2.cpp b/20160623/pointers-2.cpp
new file mode 100644
index 0000000..453794a
--- /dev/null
+++ b/20160623/pointers-2.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+using namespace std;
+
+int *some_function ()
+{
+ int *p = new int[1];
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ int *p = some_function ();
+ cout << *p << endl;
+ delete p;
+ return 0;
+}
diff --git a/20160623/pointers-3.cpp b/20160623/pointers-3.cpp
new file mode 100644
index 0000000..be594cf
--- /dev/null
+++ b/20160623/pointers-3.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+#include <memory>
+
+using namespace std;
+
+shared_ptr <int> some_function ()
+{
+ shared_ptr <int> p (new int[1]);
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ auto p = some_function ();
+ cout << *p << endl;
+ return 0;
+}
diff --git a/20160623/pointers-4.cpp b/20160623/pointers-4.cpp
new file mode 100644
index 0000000..6911c59
--- /dev/null
+++ b/20160623/pointers-4.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+#include <memory>
+
+using namespace std;
+
+shared_ptr <int> some_function ()
+{
+ shared_ptr <int> p (new int[1]);
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ auto p = some_function ();
+ auto q = p;
+ cout << *p << endl;
+ cout << *q / 2 + 2 << endl;
+ return 0;
+}
diff --git a/20160623/pointers-5.cpp b/20160623/pointers-5.cpp
new file mode 100644
index 0000000..ad18750
--- /dev/null
+++ b/20160623/pointers-5.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+#include <memory>
+
+using namespace std;
+
+unique_ptr <int> some_function ()
+{
+ unique_ptr <int> p (new int[1]);
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ auto p = some_function ();
+ auto q = p;
+ cout << *p << endl;
+ cout << *q / 2 + 2 << endl;
+ return 0;
+}
diff --git a/20160623/pointers-6.cpp b/20160623/pointers-6.cpp
new file mode 100644
index 0000000..5c97440
--- /dev/null
+++ b/20160623/pointers-6.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+#include <memory>
+
+using namespace std;
+
+unique_ptr <int> some_function ()
+{
+ unique_ptr <int> p (new int[1]);
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ auto p = some_function ();
+ auto q = move (p);
+ cout << *p << endl;
+ cout << *q / 2 + 2 << endl;
+ return 0;
+}
diff --git a/20160623/pointers-7.cpp b/20160623/pointers-7.cpp
new file mode 100644
index 0000000..d5ccb0a
--- /dev/null
+++ b/20160623/pointers-7.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+#include <memory>
+
+using namespace std;
+
+unique_ptr <int> some_function ()
+{
+ unique_ptr <int> p (new int[1]);
+ *p = 42;
+ return p;
+}
+
+int main ()
+{
+ auto p = some_function ();
+ cout << *p << endl;
+ auto q = move (p);
+ cout << *q / 2 + 2 << endl;
+ return 0;
+}
diff --git a/20160623/stl-1.cpp b/20160623/stl-1.cpp
new file mode 100644
index 0000000..444e228
--- /dev/null
+++ b/20160623/stl-1.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main ()
+{
+ vector <int> prime;
+ prime.push_back (2);
+ prime.push_back (3);
+ prime.push_back (5);
+ prime.push_back (7);
+ prime.push_back (11);
+ for (int i = 0; i < 5; i++)
+ cout << prime[i] << endl;
+ return 0;
+}
diff --git a/20160623/stl-2.cpp b/20160623/stl-2.cpp
new file mode 100644
index 0000000..4a866fe
--- /dev/null
+++ b/20160623/stl-2.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <list>
+
+using namespace std;
+
+int main ()
+{
+ list <int> prime;
+ prime.push_back (2);
+ prime.push_back (3);
+ prime.push_back (5);
+ prime.push_back (7);
+ prime.push_back (11);
+ for (list <int> ::iterator p = prime.begin (); p != prime.end (); p++)
+ cout << *p << endl;
+ return 0;
+}
diff --git a/20160623/stl-2a.cpp b/20160623/stl-2a.cpp
new file mode 100644
index 0000000..a552079
--- /dev/null
+++ b/20160623/stl-2a.cpp
@@ -0,0 +1,11 @@
+#include <iostream>
+
+using namespace std;
+
+int main ()
+{
+ int prime[] = { 2, 3, 5, 7, 11 };
+ for (int *p = prime; p != prime + 5; p++)
+ cout << *p << endl;
+ return 0;
+}
diff --git a/20160623/stl-3.cpp b/20160623/stl-3.cpp
new file mode 100644
index 0000000..19ae7a3
--- /dev/null
+++ b/20160623/stl-3.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main ()
+{
+ vector <int> prime;
+ prime.push_back (2);
+ prime.push_back (3);
+ prime.push_back (5);
+ prime.push_back (7);
+ prime.push_back (11);
+ for (vector <int> ::iterator p = prime.begin (); p != prime.end (); p++)
+ cout << *p << endl;
+ return 0;
+}
diff --git a/20160623/stl-4.cpp b/20160623/stl-4.cpp
new file mode 100644
index 0000000..cdd2a98
--- /dev/null
+++ b/20160623/stl-4.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main ()
+{
+ vector <int> prime;
+ prime.push_back (2);
+ prime.push_back (3);
+ prime.push_back (5);
+ prime.push_back (7);
+ prime.push_back (11);
+ for (auto p = prime.begin (); p != prime.end (); p++)
+ cout << *p << endl;
+ return 0;
+}
diff --git a/20160623/stl-5.cpp b/20160623/stl-5.cpp
new file mode 100644
index 0000000..a8bebd5
--- /dev/null
+++ b/20160623/stl-5.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main ()
+{
+ vector <int> prime;
+ prime.push_back (2);
+ prime.push_back (3);
+ prime.push_back (5);
+ prime.push_back (7);
+ prime.push_back (11);
+ for (auto p: prime)
+ cout << p << endl;
+ return 0;
+}
--
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