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2 commits
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9e94f7cbcc
| Author | SHA1 | Date | |
|---|---|---|---|
| 9e94f7cbcc | |||
| 21827037dc |
9 changed files with 159 additions and 35 deletions
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@ -4,16 +4,14 @@
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{% include "src/_includes/partials/header.njk" %}
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{% include "src/_includes/partials/header.njk" %}
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<body>
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<body>
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<section class="section">
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{% include "src/_includes/partials/darktoggle.njk" %}
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{% include "src/_includes/partials/darktoggle.njk" %}
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{% include "src/_includes/partials/nav.njk"%}
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{% include "src/_includes/partials/nav.njk"%}
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<div class="hero">
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<div class="hero">
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{{ content | safe }}
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{{ content | safe }}
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</div>
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</div>
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{% include "src/_includes/partials/footer.njk" %}
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{% include "src/_includes/partials/footer.njk" %}
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</section>
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</body>
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</body>
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</html>
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</html>
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@ -1,9 +1,9 @@
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---
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---
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layout: "base.njk"
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layout: "base.njk"
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---
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---
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<main>
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<div class="main">
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<h1 class="hero-title">
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<h1 class="hero-title">
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{{ title }}
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{{ title | safe }}
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</h1>
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</h1>
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<div class="page-content">
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<div class="page-content">
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@ -18,6 +18,6 @@ layout: "base.njk"
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{%- endfor -%}
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{%- endfor -%}
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</ul>
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</ul>
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#}
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#}
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</main>
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</div>
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{% include "src/_includes/partials/blob.html" %}
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{% include "src/_includes/partials/blob.html" %}
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@ -1,7 +1,7 @@
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---
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---
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layout: "base.njk"
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layout: "base.njk"
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---
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---
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<main>
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<div class="main">
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<h1 class="hero-title">
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<h1 class="hero-title">
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{{ title }}
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{{ title }}
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</h1>
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</h1>
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@ -11,4 +11,4 @@ layout: "base.njk"
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<div class="page-content">
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<div class="page-content">
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{{ content | safe }}
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{{ content | safe }}
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</div>
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</div>
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</main>
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</div>
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@ -9,7 +9,6 @@
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</script>
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</script>
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<meta charset="UTF-8">
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>{{ title }}</title>
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<title>{{ title }}</title>
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<link rel="stylesheet" type="text/css" media="screen" href="{{ "/css/main.css" | url }}">
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<link rel="stylesheet" type="text/css" media="screen" href="{{ "/css/main.css" | url }}">
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BIN
src/assets/Pointer-Diagramm.pdf
Normal file
BIN
src/assets/Pointer-Diagramm.pdf
Normal file
Binary file not shown.
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@ -24,7 +24,7 @@ a {
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transition: all 0.3s ease;
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transition: all 0.3s ease;
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}
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}
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main a {
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.hero a {
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font-family: "Righteous";
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font-family: "Righteous";
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text-decoration: underline;
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text-decoration: underline;
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color: #910c75;
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color: #910c75;
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@ -312,12 +312,13 @@ a.card-link {
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header {
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header {
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display: flex;
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display: flex;
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flex-direction: row;
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flex-direction: row;
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flex-wrap: wrap;
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justify-content: space-between;
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justify-content: space-between;
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align-items: center;
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align-items: center;
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width: 100%;
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width: 100%;
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margin-bottom: 10vh;
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margin-bottom: 10vh;
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font-family: "Righteous";
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font-family: "Righteous";
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font-size: 20px;
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font-size: 1.3em;
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margin-top: 2em;
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margin-top: 2em;
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}
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}
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@ -336,6 +337,8 @@ nav {
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justify-content: center;
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justify-content: center;
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align-items: center;
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align-items: center;
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font-size: 1.3em;
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gap: 3em;
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gap: 3em;
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background: linear-gradient(to right, #151515 1px, transparent 1px) 0 0,
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background: linear-gradient(to right, #151515 1px, transparent 1px) 0 0,
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linear-gradient(to right, #151515 1px, transparent 1px) 0 100%,
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linear-gradient(to right, #151515 1px, transparent 1px) 0 100%,
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@ -350,17 +353,17 @@ nav {
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}
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}
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.hero-title {
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.hero-title {
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line-break: anywhere;
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margin-top: 10vh;
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margin-top: 10vh;
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font-size: 5em;
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font-size: 3.5em;
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}
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}
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.page-content {
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.page-content {
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font-size: 20px;
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margin: 0 20px;
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margin: 0 20px;
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}
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}
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main {
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.main {
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max-width: 75em;
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max-width: 100%;
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align-self: center;
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align-self: center;
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}
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}
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@ -369,7 +372,7 @@ main {
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}
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}
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p {
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p {
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max-width: 45vw;
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max-width: 55vw;
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}
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}
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.link {
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.link {
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@ -453,6 +456,7 @@ transition: opacity 0.3s ease;
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background-color: hsl(220, 13%, 18%);
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background-color: hsl(220, 13%, 18%);
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color: hsl(220, 14%, 71%);
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color: hsl(220, 14%, 71%);
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border-radius: 0.3em;
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border-radius: 0.3em;
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font-size: 1.3em;
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white-space: nowrap; /* prevent line breaks in inline code */
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white-space: nowrap; /* prevent line breaks in inline code */
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}
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}
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34
src/sp1/hausaufgaben.md
Normal file
34
src/sp1/hausaufgaben.md
Normal file
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@ -0,0 +1,34 @@
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|
---
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title: "How-To: Hausaufgaben"
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layout: "blog-post.njk"
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date: 2025-05-05
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|
---
|
||||||
|
Der Ablauf der Bearbeitung einer Aufgabe am Beispiel "Aufgabe 0 - epoche"
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1. Aufgaben-Repository erstellen (muss im cip ausgeführt werden)
|
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|
```sh
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||||||
|
/proj/i4sp1/bin/mkrepo epoche
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|
```
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Das Repo ist dann im [Gitlab](https://gitlab.cs.fau.de/) der FAU zu finden zu funden
|
||||||
|
|
||||||
|
2. Das Repo clonen (lokal herunterladen). Die URL findet ihr unter dem blauen "Code" button auf dem Repo in Gitlab.
|
||||||
|
```sh
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||||||
|
git clone [REPO-URL]
|
||||||
|
```
|
||||||
|
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||||||
|
3. Lokale Änderungen durchführen
|
||||||
|
|
||||||
|
4. Die Änderungen und neuen Dateien dem lokalen commiten
|
||||||
|
```sh
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|
git add . # Änderungen in den Staging bereich schieben
|
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|
git commit -m "[COMMIT_MESSAGE]" # Die Änderungen mit einem deskriptiven kommentar zu einem commit zusammenfasssen
|
||||||
|
```
|
||||||
|
|
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|
5. Alle commmits zu dem FAU Gitlab pushen (**SEHR WICHTIG**). Es kann nur bewertet werden, was vor der deadline gepushed wurde
|
||||||
|
```sh
|
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|
git push
|
||||||
|
```
|
||||||
|
möglicherweise funktioniert das nicht auf anhieb und es muss einmal folgender command ausgeführt werden:
|
||||||
|
```sh
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||||||
|
git push --set-upstream origin main
|
||||||
|
```
|
||||||
|
|
@ -4,14 +4,15 @@ layout: blog-page.njk
|
||||||
page_for: "sp1-lesson"
|
page_for: "sp1-lesson"
|
||||||
---
|
---
|
||||||
## Meine Übungen
|
## Meine Übungen
|
||||||
- Tafelübung (T02) Montags 14:15 - 15:45 im [Seminarraum 0.031-113](https://www.campo.fau.de:443/qisserver/pages/startFlow.xhtml?_flowId=showRoomDetail-flow&roomId=788&roomType=3&context=showRoomDetail&navigationPosition=organisation,searchroom)
|
- Tafelübung (T02) Montags 14:15 - 15:45 im [Seminarraum 0.031-113 (Aquarium)](https://www.campo.fau.de:443/qisserver/pages/startFlow.xhtml?_flowId=showRoomDetail-flow&roomId=788&roomType=3&context=showRoomDetail&navigationPosition=organisation,searchroom)
|
||||||
- Rechnerübung Donnerstags 16:15 - 18:45 im [CIP1](https://www.campo.fau.de/qisserver/pages/startFlow.xhtml?_flowId=showRoomDetail-flow&roomId=3349&roomType=3&context=showRoomDetail&navigationPosition=organisation,searchroom)
|
- Rechnerübung Donnerstags 16:15 - 18:45 im [CIP1](https://www.campo.fau.de/qisserver/pages/startFlow.xhtml?_flowId=showRoomDetail-flow&roomId=3349&roomType=3&context=showRoomDetail&navigationPosition=organisation,searchroom)
|
||||||
|
|
||||||
## Wichtige Infos
|
## Wichtige Infos
|
||||||
|
- <a href="./hausaufgaben">How-To: Hausaufgaben</a>
|
||||||
- Unter `/proj/i4sp1/bin/` im CIP finden sich nützliche SP1-related Programme und scripts, wie
|
- Unter `/proj/i4sp1/bin/` im CIP finden sich nützliche SP1-related Programme und scripts, wie
|
||||||
- `mkrepo` zum Aufgaben-Repo erstellen
|
- `mkrepo` zum Aufgaben-Repo erstellen
|
||||||
- `deadline` zum Abgabetermine nachschauen
|
- `deadline` zum Abgabetermine nachschauen
|
||||||
- Vorgegebene Compiler-Flags: `-std=c11 -pedantic -D_XOPEN_SOURCE=700 -Wall -Werror -fsanitize=undefined -fno-sanitize-recover -g`
|
- Vorgegebene Compiler-Flags: `-std=c11` `-pedantic` `-D_XOPEN_SOURCE=700` `-Wall` `-Werror` `-fsanitize=undefined` `-fno-sanitize-recover` `-g`
|
||||||
|
|
||||||
## Wichtige Links
|
## Wichtige Links
|
||||||
- [Aufgaben](https://sys.cs.fau.de/lehre/ss25/sp1/uebung#aufgaben)
|
- [Aufgaben](https://sys.cs.fau.de/lehre/ss25/sp1/uebung#aufgaben)
|
||||||
|
|
@ -33,8 +34,13 @@ page_for: "sp1-lesson"
|
||||||
- Mail an mich: <a href="mailto:nova.ruff@fau.de" class="link">nova.ruff@fau.de</a>
|
- Mail an mich: <a href="mailto:nova.ruff@fau.de" class="link">nova.ruff@fau.de</a>
|
||||||
- [SP-FAQ](https://sys.cs.fau.de/lehre/ss25/sp1/faq)
|
- [SP-FAQ](https://sys.cs.fau.de/lehre/ss25/sp1/faq)
|
||||||
|
|
||||||
|
## Andere Tutoren
|
||||||
## Weitere Links
|
|
||||||
- [SP1 Website](https://sys.cs.fau.de/lehre/ss25/sp1)
|
- [SP1 Website](https://sys.cs.fau.de/lehre/ss25/sp1)
|
||||||
|
- [Lukas (T03)](https://wwwcip.cs.fau.de/~uk16isyq/)
|
||||||
- [Julian (T08)](https://jzbor.de/tut/sp1/)
|
- [Julian (T08)](https://jzbor.de/tut/sp1/)
|
||||||
|
- [Stefan (T09)](https://wwwcip.cs.fau.de/~ok73ozus/sp)
|
||||||
|
- [Luca (T11)](https://wwwcip.cs.fau.de/~am99ihig/sp)
|
||||||
- [Philip (ehemalig)](https://wwwcip.cs.fau.de/~oj14ozun/sp1/)
|
- [Philip (ehemalig)](https://wwwcip.cs.fau.de/~oj14ozun/sp1/)
|
||||||
|
|
||||||
|
## Hilfreiche Links
|
||||||
|
- [cdecl.org](https://cdecl.org/) um zu entziffern, was bei Pointern passiert
|
||||||
103
src/sp1/ub1.md
103
src/sp1/ub1.md
|
|
@ -7,6 +7,8 @@ date: 2025-05-04
|
||||||
## Manual-Pages
|
## Manual-Pages
|
||||||
Mit dem Programm `man` kann die Dokumentation von verschiedenen Bibliotheksfunktionen nachgelesen werden: `man 3p printf`
|
Mit dem Programm `man` kann die Dokumentation von verschiedenen Bibliotheksfunktionen nachgelesen werden: `man 3p printf`
|
||||||
|
|
||||||
|
Oft findet ihr die schreibweise `time(3p)`, d.h. es wird auf die manpage von time aus der section 3p verwiesen: `man 3p time`
|
||||||
|
|
||||||
## Workflow mit git
|
## Workflow mit git
|
||||||
- `git clone [URL]` - Remote Repo lokal herunterladen
|
- `git clone [URL]` - Remote Repo lokal herunterladen
|
||||||
- `git pull` - Neuester Stand eines Repos herunterladen
|
- `git pull` - Neuester Stand eines Repos herunterladen
|
||||||
|
|
@ -16,23 +18,83 @@ Mit dem Programm `man` kann die Dokumentation von verschiedenen Bibliotheksfunkt
|
||||||
- `git commit -m "[COMMMIT_MESSAGE]"` - Änderungen zu dem Repo committen
|
- `git commit -m "[COMMMIT_MESSAGE]"` - Änderungen zu dem Repo committen
|
||||||
- `git push` - Neue Commits an das remote Repo kommunizieren (**wichtig zur Übungsabgabe**)
|
- `git push` - Neue Commits an das remote Repo kommunizieren (**wichtig zur Übungsabgabe**)
|
||||||
|
|
||||||
## Beispiel Program aus der Präsenzübung
|
## Die C Programmiersprache
|
||||||
|
- Die "main" funktion in C bekommt immer 2 argumente:
|
||||||
|
- `int argc`: enthält 1 + die Anzahl der Argumente, die dem Program gegeben wurden
|
||||||
|
- `char *argv[]`: ein array von char-pointern (also ein char-pointer-pointer)
|
||||||
|
- Das ende von char-arrays (string) wird mit dem Zeichen `'\0'` gekennzeichnet
|
||||||
|
- Array-Zugriff: `arr[1]` ist gleichbedeutend mit `*(arr + 1)`
|
||||||
|
- Struct-Zugriff: `myStruct->value` ist gleichbedeutend mit `(*myStruct).value`
|
||||||
|
- <a href="{{ "/assets/Pointer-Diagramm.pdf" | url }}">Nützliches Pointer Diagramm</a>
|
||||||
|
|
||||||
|
## Fehlerbehandlung (wichtig)
|
||||||
|
Funktionen können in C fehlschlagen und fehler müssen **immer** abgefangen und behandelt werden (außer in einer bereits laufenden Fehlerbehandlung).
|
||||||
|
|
||||||
|
Was der Rückgabewert einer Funktion ist, wenn sie fehlschlägt, steht in dem "RETURN VALUE" Abschnitt der zugehörigen manpage.
|
||||||
|
z.B. steht in malloc(3p), dass im Fehlerfall ein "null pointer" returned wird; Wir müssen uns also nach jedem malloc-Aufruf versichern, dass der Rückgabewert nicht ein null pointer war:
|
||||||
```c
|
```c
|
||||||
#include <stdio.h>
|
#include <stdlib.h>
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
int main(int argc, char *argv[]) {
|
int main(int argc, char *argv[]) {
|
||||||
// using strlen()
|
// wir wollen 5 ints abspeichern
|
||||||
for (int i = 1; i < argc; i++) {
|
int *p = malloc(sizeof(int) * 5);
|
||||||
char *curr_arg = argv[i];
|
if (p == NULL) {
|
||||||
for (int l = 0; l < strlen(curr_arg); l++) {
|
// es gab einen fehler
|
||||||
printf("%c\n", curr_arg[l]);
|
return -1;
|
||||||
}
|
}
|
||||||
|
// kein fehler -> es kann weitergemacht werden ...
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## malloc und free
|
||||||
|
Wichtig ist, dass mit `malloc` allokierter speicher auch wieder manuell mit der Funktion `free()` freigegeben werden **muss** (`free()` kann nicht fehlschlagen und benötigt so auch keine Fehlerbehandlung):
|
||||||
|
```c
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
int main(int argc, char *argv[]) {
|
||||||
|
int *p = malloc(sizeof(int) * 5);
|
||||||
|
if (p == NULL) {
|
||||||
|
return -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
// alternative
|
// ... do something with p ...
|
||||||
|
|
||||||
|
free(p);
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
## Beispiel Programme aus der Präsenzübung
|
||||||
|
### Alle dem Program gegebenen Argumente drucken
|
||||||
|
```c
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
int main(int argc, char *argv[]) {
|
||||||
|
// iterate over arguments passed to program
|
||||||
for (int i = 1; i < argc; i++) {
|
for (int i = 1; i < argc; i++) {
|
||||||
|
// get reference to char-array for given argument
|
||||||
char *curr_arg = argv[i];
|
char *curr_arg = argv[i];
|
||||||
|
|
||||||
|
// alternative schreibweise:
|
||||||
|
// char *curr_arg = *(argv + i);
|
||||||
|
|
||||||
|
printf("%s\n", curr_arg);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Jeden char der Argumente auf eine eigene Zeile drucken
|
||||||
|
Bei diesem Program wurde benutzt, dass in C, char-arrays mit einem '\0'-byte terminiert sind
|
||||||
|
```c
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
int main(int argc, char *argv[]) {
|
||||||
|
// iterate over arguments passed to program
|
||||||
|
// start at i = 1, because i = 0 is the name of the program
|
||||||
|
for (int i = 1; i < argc; i++) {
|
||||||
|
// get reference to char-array for given argument
|
||||||
|
char *curr_arg = argv[i];
|
||||||
|
|
||||||
|
// iterate over the current argument, until '\0' is reached (end of string)
|
||||||
int l = 0;
|
int l = 0;
|
||||||
while (curr_arg[l] != '\0') {
|
while (curr_arg[l] != '\0') {
|
||||||
printf("%c\n", curr_arg[l]);
|
printf("%c\n", curr_arg[l]);
|
||||||
|
|
@ -41,3 +103,24 @@ int main(int argc, char *argv[]) {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
|
### Speicher für structs anlegen
|
||||||
|
```c
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
struct listelement {
|
||||||
|
int value;
|
||||||
|
struct listelement *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
int main(int argc, char *argv[]) {
|
||||||
|
struct listelement *element1 = malloc(sizeof(struct listelement));
|
||||||
|
if (element1 == NULL) {
|
||||||
|
// fehlerbehandlung ...
|
||||||
|
}
|
||||||
|
|
||||||
|
// ... rest vom program
|
||||||
|
|
||||||
|
free(element1)
|
||||||
|
}
|
||||||
|
```
|
||||||
Loading…
Add table
Reference in a new issue