From caafb90259dbc84f9641e02802eb5c62ee6012d5 Mon Sep 17 00:00:00 2001
From: Uwe Wienkop <uwe.wienkop@th-nuernberg.de>
Date: Mon, 21 Jun 2021 13:07:02 +0200
Subject: [PATCH] 2021-06-21 Wdhlg. delegates + generics
---
13-Ubg ApplyAll/13-1 ApplyAll.csproj | 9 ++
13-Ubg ApplyAll/Program.cs | 61 +++++++++++++
13-UbgCycleList-Mo/13-UbgCycleList-Mo.csproj | 9 ++
13-UbgCycleList-Mo/Program.cs | 92 ++++++++++++++++++++
Prog2WienkopSS2021.sln | 14 ++-
5 files changed, 184 insertions(+), 1 deletion(-)
create mode 100644 13-Ubg ApplyAll/13-1 ApplyAll.csproj
create mode 100644 13-Ubg ApplyAll/Program.cs
create mode 100644 13-UbgCycleList-Mo/13-UbgCycleList-Mo.csproj
create mode 100644 13-UbgCycleList-Mo/Program.cs
diff --git a/13-Ubg ApplyAll/13-1 ApplyAll.csproj b/13-Ubg ApplyAll/13-1 ApplyAll.csproj
new file mode 100644
index 0000000..450eba1
--- /dev/null
+++ b/13-Ubg ApplyAll/13-1 ApplyAll.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_13_Ubg_ApplyAll</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/13-Ubg ApplyAll/Program.cs b/13-Ubg ApplyAll/Program.cs
new file mode 100644
index 0000000..f5fe9ab
--- /dev/null
+++ b/13-Ubg ApplyAll/Program.cs
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+
+namespace _13_Ubg_ApplyAll
+{
+ /* Schreiben Sie die folgenden generischen Methoden:
+ *
+ * 1) ApplyAll, die für Felder eines beliebigen Typs, eine übergebene Funktion auf alle Feldelemente anwendet
+ * und das derart modifizierte Feld zurückliefert.
+ *
+ * 2) Select soll eine übergebene Filterfunktion auf alle Feldelemente anwenden und nur diejenigen zurückliefern,
+ * bei denen das Feldelement die Filterkriterien erfüllt. Hierfür kann die generische MS Liste<> verwendet werden.
+ *
+ * Schreiben Sie für unterschiedliche Basistypen Lambda-Ausdrücke oder anonyme Methoden
+ */
+ class Program
+ {
+ delegate T MeineFkt<T>(T x);
+ //delegate int MeineFkt<int>(int x)
+ delegate bool MeinFilter<T>(T x);
+
+
+ // static int[] ApplyAll<int>(MeineFkt<int> fkt, params int[] werte)
+ // static string[] ApplyAll<string>(MeineFkt<string> fkt, params string[] werte)
+ static T[] ApplyAll<T>(MeineFkt<T> fkt, params T[] werte)
+ {
+ T[] res = new T[werte.Length];
+ for (int i = 0; i < werte.Length; i++)
+ {
+ res[i] = fkt(werte[i]);
+ Console.Write($"{res[i]} ");
+ }
+ Console.WriteLine();
+ return res;
+ }
+
+ static T[] Select<T>(MeinFilter<T> filter, params T[] werte)
+ {
+ List<T> res = new List<T>();
+ foreach (var item in werte)
+ {
+ if (filter(item))
+ {
+ res.Add(item);
+ Console.Write($"{item} ");
+ }
+ }
+ Console.WriteLine();
+ return res.ToArray();
+ }
+ static void Main(string[] args)
+ {
+ ApplyAll(x => x + 1, 10, 30, 40, 50, 60, 70, 80, 100);
+ ApplyAll(x => (int) (x * 0.5), 10, 30, 40, 50, 60, 70, 80, 100);
+ ApplyAll(delegate (int x) { return x + 1; }, ApplyAll(x => 2 * x, 10, 20, 30));
+ ApplyAll(x => x + 1, "Anton","Berta","Claudia");
+
+ Select(x => x>50, 10, 30, 40, 50, 60, 70, 80, 100);
+ }
+ }
+}
diff --git a/13-UbgCycleList-Mo/13-UbgCycleList-Mo.csproj b/13-UbgCycleList-Mo/13-UbgCycleList-Mo.csproj
new file mode 100644
index 0000000..0f5226b
--- /dev/null
+++ b/13-UbgCycleList-Mo/13-UbgCycleList-Mo.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>netcoreapp3.1</TargetFramework>
+ <RootNamespace>_13_UbgCycleList_Mo</RootNamespace>
+ </PropertyGroup>
+
+</Project>
diff --git a/13-UbgCycleList-Mo/Program.cs b/13-UbgCycleList-Mo/Program.cs
new file mode 100644
index 0000000..94fd212
--- /dev/null
+++ b/13-UbgCycleList-Mo/Program.cs
@@ -0,0 +1,92 @@
+using System;
+using System.Collections.Generic;
+
+namespace _13_UbgCycleList_Mo
+{
+ class CycleList
+ {
+ class LItem
+ {
+ public string name;
+ public LItem next;
+ public LItem(string Name) { name = Name; next = null; }
+ }
+ LItem first = null, last = null;
+ LItem nextIn, nextOut;
+ int capacity;
+ public int Count { get; private set; } // Anzahl gerade im Puffer gespeicherter Elemente
+ public void AddEnd(string Name) // wie bisher
+ {
+ LItem newItem = new LItem(Name);
+ if (first == null)
+ first = last = newItem;
+ else
+ {
+ last.next = newItem;
+ last = newItem;
+ }
+ }
+ public CycleList()
+ {
+ for (int i = 0; i < 10; i++)
+ AddEnd(null);
+ last.next = first;
+ Count = 0;
+ capacity = 10;
+ nextIn = nextOut = first;
+ }
+ public void Write(string Name)
+ {
+ if (Count == capacity)
+ throw new Exception("Buffer Full");
+ nextIn.name = Name;
+ nextIn = nextIn.next;
+ Count++;
+ }
+ public string Read()
+ {
+ if (Count == 0)
+ throw new Exception("Buffer Empty");
+
+ string tmp = nextOut.name;
+ nextOut.name = null;
+ nextOut = nextOut.next;
+ Count--;
+ return tmp;
+ }
+ public void Enlarge(int n)
+ {
+ // 1) "Z" suchen
+ LItem item = first;
+ while (item.next != nextIn)
+ item = item.next;
+ // JETZT: item zeigt auf "Z", nextIn ist der Nachfolger
+
+ for (int i = 0; i < n; i++)
+ {
+ LItem newItem = new LItem(null);
+ newItem.next = item.next;
+ item.next = newItem;
+ capacity++;
+ }
+ nextIn = item.next;
+ }
+ public IEnumerator<string> GetEnumerator()
+ {
+ LItem item = nextOut;
+ for (int i = 0; i < Count; i++)
+ {
+ yield return item.name;
+ item = item.next;
+ }
+ }
+
+ }
+ class Program
+ {
+ static void Main(string[] args)
+ {
+ Console.WriteLine("Hello World!");
+ }
+ }
+}
diff --git a/Prog2WienkopSS2021.sln b/Prog2WienkopSS2021.sln
index 6c9328c..c72ef9e 100644
--- a/Prog2WienkopSS2021.sln
+++ b/Prog2WienkopSS2021.sln
@@ -107,7 +107,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "12-1 NewOverride", "12-1New
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "12-2 Delegateaufrufausbreitung", "12-2 Delegateaufrufausbreitung\12-2 Delegateaufrufausbreitung.csproj", "{30C34E16-FFAF-48A5-8F3F-AE3A7CF7B56D}"
EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "12-3 VererbungRedo", "12-3 VererbungRedo\12-3 VererbungRedo.csproj", "{882C4C12-B62B-4BDB-A52C-C1D62E9B0D6A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "12-3 VererbungRedo", "12-3 VererbungRedo\12-3 VererbungRedo.csproj", "{882C4C12-B62B-4BDB-A52C-C1D62E9B0D6A}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "13-1 ApplyAll", "13-Ubg ApplyAll\13-1 ApplyAll.csproj", "{1335DAC1-39A7-4CB1-9893-F4017A57E2BA}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "13-UbgCycleList-Mo", "13-UbgCycleList-Mo\13-UbgCycleList-Mo.csproj", "{C1594C99-2A3F-4948-AC3E-ED7D16379C48}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -327,6 +331,14 @@ Global
{882C4C12-B62B-4BDB-A52C-C1D62E9B0D6A}.Debug|Any CPU.Build.0 = Debug|Any CPU
{882C4C12-B62B-4BDB-A52C-C1D62E9B0D6A}.Release|Any CPU.ActiveCfg = Release|Any CPU
{882C4C12-B62B-4BDB-A52C-C1D62E9B0D6A}.Release|Any CPU.Build.0 = Release|Any CPU
+ {1335DAC1-39A7-4CB1-9893-F4017A57E2BA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {1335DAC1-39A7-4CB1-9893-F4017A57E2BA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {1335DAC1-39A7-4CB1-9893-F4017A57E2BA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {1335DAC1-39A7-4CB1-9893-F4017A57E2BA}.Release|Any CPU.Build.0 = Release|Any CPU
+ {C1594C99-2A3F-4948-AC3E-ED7D16379C48}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {C1594C99-2A3F-4948-AC3E-ED7D16379C48}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {C1594C99-2A3F-4948-AC3E-ED7D16379C48}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {C1594C99-2A3F-4948-AC3E-ED7D16379C48}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
--
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