Skript und Übersichtsdatei (README.md)

script/hp-slides-title-2020ws.tex

+% hp-slides-title-2020ws.pdf - Title Page for Lecture Slides on Low-Level Programming
+% Copyright (C) 2018, 2019, 2020  Peter Gerwinski
+%
+% This document is free software: you can redistribute it and/or
+% modify it either under the terms of the Creative Commons
+% Attribution-ShareAlike 3.0 License, or under the terms of the
+% GNU General Public License as published by the Free Software
+% Foundation, either version 3 of the License, or (at your option)
+% any later version.
+%
+% This document is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this document.  If not, see <http://www.gnu.org/licenses/>.
+%
+% You should have received a copy of the Creative Commons
+% Attribution-ShareAlike 3.0 Unported License along with this
+% document.  If not, see <http://creativecommons.org/licenses/>.
+
+\documentclass[10pt,t]{beamer}
+
+\usepackage{pgslides}
+
+\setlength{\parskip}{\medskipamount}
+
+\title{Hardwarenahe Programmierung}
+\author{Prof.\ Dr.\ rer.\ nat.\ Peter Gerwinski}
+\date{Wintersemester 2020/21}
+
+\begin{document}
+
+\maketitleframe
+
+\nosectionnonumber{Wichtiger Hinweis}
+
+\begin{frame}[plain]
+
+  \vfill
+
+  \shownosectionnonumber
+
+  \vspace*{-\medskipamount}
+
+  Diese Vortragsfolien dienen dazu, den Vortrag der/des Lehrenden zu unter-\\stützen.
+  Sie enthalten \textbf{nur einen Teil} der Lerninhalte.
+  Wie groß dieser Teil ist, hängt von den konkreten Lerninhalten ab
+  und kann von "`praktisch alles"' bis "`praktisch gar nichts"' schwanken.
+  Diese Folien alleine sind daher
+  \textbf{nicht für ein Selbststudium geeignet!}
+  Hierfür sei auf das Skript verwiesen,
+  in dem allerdings keine tagesaktuellen Änderungen enthalten sind.
+
+  Mindestens genauso wichtig wie die Vortragsfolien sind die Beispiel-Programme,
+  die vor Ihren Augen in den Vorlesungen erarbeitet werden.
+  Diese sind im Git-Repository
+  (\url{https://gitlab.cvh-server.de/pgerwinski/hp.git})
+  mit allen Zwischenschritten enthalten und befinden sich
+  in den zu den jeweiligen Kalenderdaten gehörenden Verzeichnissen
+  (z.\,B.\ für den 10.\kern0.5pt10.\,2020 unter
+  \url{https://gitlab.cvh-server.de/pgerwinski/hp/tree/master/20201105/}\kern1pt).
+
+  Wenn Sie die Übungsaufgaben bearbeiten, nutzen Sie die Gelegenheit,
+  Ihre Lösungen in den Übungen überprüfen zu lassen.
+  Wer nach Vergleich mit der Musterlösung zu dem Schluß kommt,
+  alles richtig gelöst zu haben, erlebt sonst in der Klausur oft eine
+  unangenehme Überraschung.
+
+  \strut\hfill In jedem Fall: \emph{Viel Erfolg!}
+
+\end{frame}
+
+\end{document}

script/if-0.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b;
+  printf ("Bitte a eingeben: ");
+  scanf ("%d", &a);
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  printf ("a geteilt durch b ist: %d\n", a / b);
+  return 0;
+}

script/if-1.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b;
+  printf ("Bitte a eingeben: ");
+  scanf ("%d", &a);
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  if (b != 0)
+    printf ("a geteilt durch b ist: %d\n", a / b);
+  return 0;
+}

script/if-2.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b;
+  printf ("Bitte a eingeben: ");
+  scanf ("%d", &a);
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  if (b != 0)
+    printf ("a geteilt durch b ist: %d\n", a / b);
+  else
+    printf ("Bitte nicht durch 0 teilen!\n");
+  return 0;
+}

script/if-3.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b;
+  printf ("Bitte a eingeben: ");
+  scanf ("%d", &a);
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  if (b != 0)
+    printf ("a geteilt durch b ist: %d\n", a / b);
+  else
+    printf ("Bitte nicht durch 0 teilen!\n");
+    printf ("Das tut man nicht.\n");
+  return 0;
+}

script/if-4.c

+#include <stdio.h>
+
+int main (void)
+{
+  int a, b;
+  printf ("Bitte a eingeben: ");
+  scanf ("%d", &a);
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  if (b != 0)
+    printf ("a geteilt durch b ist: %d\n", a / b);
+  else
+    {
+      printf ("Bitte nicht durch 0 teilen!\n");
+      printf ("Das tut man nicht.\n");
+    }
+  return 0;
+}

script/if-5.c

+#include<stdio.h>
+int main(void){int a,b;printf("Bitte a eingeben: ");scanf("%d",&a);
+printf("Bitte b eingeben: ");scanf("%d",&b);if(b!=0)printf(
+"a geteilt durch b ist: %d\n",a/b);else{printf("Bitte nicht durch 0 teilen!\n");
+printf("Das tut man nicht.\n");}return 0;}

script/if-6.c

+#include <stdio.h>
+
+int main (void)
+{
+  int b;
+  printf ("Bitte b eingeben: ");
+  scanf ("%d", &b);
+  printf ("Der Ausdruck b != 0 hat den Wert %d\n", b != 0);
+  printf ("Der Ausdruck b == 0 hat den Wert %d\n", b == 0);
+  printf ("Der Ausdruck b = 23 hat den Wert %d\n", b = 23);
+  return 0;
+}

script/incdate-0.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 31;
+  d->month = 1;
+  d->year = 2012;
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-1.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 31;
+  d->month = 1;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;  /* FIXME */
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-2.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 31;
+  d->month = 1;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  if (d->day > 31)  /* FIXME */
+    {
+      d->month++;  /* FIXME */
+      d->day = 1;
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-3.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 31;
+  d->month = 12;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  if (d->day > 31)  /* FIXME */
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-4.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 30;
+  d->month = 4;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  int days_in_month = 31;  /* FIXME */
+  if (d->day > days_in_month)
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-5.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 30;
+  d->month = 4;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  int days_in_month = 31;
+  if (d->month == 2)
+    days_in_month = 28;  /* FIXME */
+  else if (d->month == 4 || d->month == 6 || d->month == 9 || d->month == 11)
+    days_in_month = 30;
+  if (d->day > days_in_month)
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-6.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 28;
+  d->month = 2;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  int days_in_month = 31;
+  if (d->month == 2)
+    {
+      int is_leap_year = 1;  /* FIXME */
+      if (is_leap_year)
+        days_in_month = 29;
+      else
+        days_in_month = 28;
+    }
+  else if (d->month == 4 || d->month == 6 || d->month == 9 || d->month == 11)
+    days_in_month = 30;
+  if (d->day > days_in_month)
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-7.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 28;
+  d->month = 2;
+  d->year = 2012;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  int days_in_month = 31;
+  if (d->month == 2)
+    {
+      int is_leap_year = 0;
+      if (d->year % 4 == 0)
+        is_leap_year = 1;  /* FIXME */
+      if (is_leap_year)
+        days_in_month = 29;
+      else
+        days_in_month = 28;
+    }
+  else if (d->month == 4 || d->month == 6 || d->month == 9 || d->month == 11)
+    days_in_month = 30;
+  if (d->day > days_in_month)
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}

script/incdate-8.c

+#include <stdio.h>
+
+typedef struct
+{
+  char day, month;
+  int year;
+}
+date;
+
+void set_date (date *d)
+{
+  d->day = 28;
+  d->month = 2;
+  d->year = 2100;
+}
+
+void inc_date (date *d)
+{
+  d->day++;
+  int days_in_month = 31;
+  if (d->month == 2)
+    {
+      int is_leap_year = 0;
+      if (d->year % 4 == 0)
+        is_leap_year = 1;  /* FIXME */
+      if (is_leap_year)
+        days_in_month = 29;
+      else
+        days_in_month = 28;
+    }
+  else if (d->month == 4 || d->month == 6 || d->month == 9 || d->month == 11)
+    days_in_month = 30;
+  if (d->day > days_in_month)
+    {
+      d->month++;
+      d->day = 1;
+      if (d->month > 12)
+        {
+          d->year++;
+          d->month = 1;
+        }
+    }
+}
+
+int main (void)
+{
+  date today;
+  set_date (&today);
+  inc_date (&today);
+  printf ("%d.%d.%d\n", today.day, today.month, today.year);
+  return 0;
+}