StructRef/src/main.tex

\documentclass[usenames,dvipsnames]{beamer}
%----------------------------------------------------------------------------------------
%	Struktur und Pointer Referat
%   20.04.2020
%----------------------------------------------------------------------------------------
\usetheme{focus} % Use the Focus theme supplied with the template

\usepackage[utf8]{inputenc}

\usepackage{booktabs}
\usepackage{amsmath}
\usepackage{hyperref}
\usepackage{graphicx}
\usepackage{listings} % Required for better table rules
\usepackage{xcolor}

% Farbdefinitionen
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\lstset{
    language=C,
    basicstyle=\ttfamily,
    numbers=left,
    numberstyle=\tiny,
    tabsize=4,
    columns=fixed,
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    showtabs=false,
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%----------------------------------------------------------------------------------------
%	 TITLE SLIDE
%----------------------------------------------------------------------------------------

\title{Strukturen + Pointer \\ Call by Reference/Value}

\subtitle{mit Anwendungsfälle / Programmierbeispiele}

\author{Lukas Heiligenbrunner}

\institute{HTL Steyr \\ Schlüsselhofgasse 63}

\date{\today}

%------------------------------------------------

\begin{document}

%------------------------------------------------

    \begin{frame}
        \maketitle % Automatically created using the information in the commands above
    \end{frame}

%----------------------------------------------------------------------------------------
%	 SECTION 1
%----------------------------------------------------------------------------------------


    \section{Strukturen} % Section title slide, unnumbered

%------------------------------------------------

    \begin{frame}{Strukturen Allgemein}
        \input{structallg.tex}
    \end{frame}

%------------------------------------------------

    \begin{frame}[fragile, allowframebreaks]{C Syntax}
        Definition:
        \begin{lstlisting}
struct Adresse {
    char name[50];
	char strasse[100];
	short hausnummer;
	long plz;
	char stadt[50];
};
        \end{lstlisting}
        Anwendung:
        \begin{lstlisting}
// Variable der Struktur erstellen
struct Adresse adresseKurt;
// Zugriff auf die Elemente
strcpy(adresseKurt.name, "Kurt Kanns");
adresseKurt.hausnummer = 23;
adresseKurt.plz = 45678;
        \end{lstlisting}

        \framebreak

        Typdefinition mit typedef:
        \begin{lstlisting}
typedef struct Adresse {
    char name[50];
	short hausnummer;
} ADR;

ADR a1,a2;
        \end{lstlisting}
    \end{frame}

    \begin{frame}{Sonstiges}
        \begin{itemize}
            \item Strukturtypdeklaration: struct Adresse {…};
            \item Gesamtlänge der Struktur: sizeof(Struktur)
            \item Zugriff auf einzelne Komponenten durch\\
            Punktnotation: Adresse1.Vorname = “Peter“;
            \item Weitere Strukturen hinzufügen: struct Adresse Adresse5;
            \item Weiteres hinzufügen von Komponenten während der Laufzeit nicht möglich.
        \end{itemize}
    \end{frame}
%------------------------------------------------

    \begin{frame}[fragile]{Strukturen als Funktionsargument}
        Ohne Typedef:
        \begin{lstlisting}
void testfunc(struct Adresse a){
    long plz = a.plz;
}
        \end{lstlisting}
        Mit Typedef:
        \begin{lstlisting}
void testfunc(ADR a){
    long plz = a.plz;
}
        \end{lstlisting}
    \end{frame}

%------------------------------------------------

    \begin{frame}[fragile]{Strukturen in Java}
        \begin{itemize}
            \item existieren nicht
            \item stattdessen Objekte
        \end{itemize}
        \begin{lstlisting}[language=java]
public class Adresse
{
    String name;
	String strasse;
	short hausnummer;
	long plz;
	String stadt;
}
        \end{lstlisting}
    \end{frame}

%----------------------------------------------------------------------------------------
%	 SECTION 2
%----------------------------------------------------------------------------------------


    \section{Pointer} % Section title slide, unnumbered

%------------------------------------------------

    \begin{frame}{Grundlagen}
        \begin{itemize}
            \item Variable die Speicheradresse enthält
            \item Pointer zeigt wo das Objekt zu finden ist.
            \item nicht alle Pointer enthalten Adresse
            \begin{itemize}
                \item NULL-Pointer
            \end{itemize}
            \item * definiert einen Pointer
            \item \& Wert eines Pointers
        \end{itemize}
    \end{frame}

%------------------------------------------------

    \begin{frame}[fragile]{Pointer Syntax}
        \begin{lstlisting}
#include <stdio.h>
int main()
{
   //Variable declaration
   int num = 10;

   //Pointer declaration
   int *p;

   //Assigning address of num to the pointer p
   p = #

   printf("Address of variable num is: %p", p);
   return 0;
}
        \end{lstlisting}
    \end{frame}

%------------------------------------------------

    \begin{frame}[focus]
        Danke für eure Aufmerksamkeit!
    \end{frame}

%----------------------------------------------------------------------------------------
%	 CLOSING/SUPPLEMENTARY SLIDES
%----------------------------------------------------------------------------------------

    \appendix

    \begin{frame}{References}
        \nocite{*} % Display all references regardless of if they were cited
        \bibliography{quellen}
        \bibliographystyle{plain}
    \end{frame}

\end{document}