exception handling

Sortieralgorithmen/BubbleSort.cpp

@@ -5,29 +5,109 @@
 #include<cstdlib>
 #include<ctime>
 
-void BubbleSort(long double *array, unsigned short amount);
+void BubbleSort(long double *array, short amount);
-void BubbleSort(int *array, unsigned short amount);
+void BubbleSort(int *array, short amount);
+void program();
+void printArray(long double *array, short amount);
+void printArray(short *array, short amount);
 
 int main()
 {
-	std::string input;
-	unsigned short amount = 1;
-	
 	std::cout << "Gib die Anzahl der Zahlen ein: ";
+	
+	program();
+	
+	getch();
+	return(0);
+}
+
+void BubbleSort(short *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	bool changed = true;
+	
+	for(unsigned short idx = 0; idx<amount-1 && changed; idx++)
+	{
+		changed = false;
+		
+		for(unsigned short idx2 = amount-1; idx2>idx; idx2--) if(array[idx2]<array[idx2-1])
+		{
+			int temp = array[idx2-1];
+			array[idx2-1] = array[idx2], array[idx2] = temp, changed = true;
+		}
+		
+		printArray(array, amount);
+	}
+}
+
+void BubbleSort(long double *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	bool changed = true;
+	
+	for(unsigned short idx = 0; idx<amount-1 && changed; idx++)
+	{
+		changed = false;
+		
+		for(unsigned short idx2 = amount-1; idx2>idx; idx2--) if(array[idx2]<array[idx2-1])
+		{
+			int temp = array[idx2-1];
+			array[idx2-1] = array[idx2], array[idx2] = temp, changed = true;
+		}
+		
+		printArray(array, amount);
+	}
+}
+
+void program()
+{
+	std::string input;
+	short amount = 1;
+	
+	do
+	{
 		getline(std::cin, input);
 		std::stringstream(input) >> amount;
+		if(amount >= USHRT_MAX) std::cerr << "Error: Die eingegebene Anzahl ist zu gro\xE1 oder klein. Gib eine andere Anzahl ein: ";
+	}while(amount>=SHRT_MAX || amount<2);
 	
+	do
+	{
 		std::cout << "\nM\x94 \bchtest du mit zuf\x84lligen Zahlen arbeiten? y/n	";
 		getline(std::cin, input);
+		if(input != "y" && input != "Y" && input == "n" && input == "N") std::cerr << "Error: Diese Eingabe ist unzulässig. ";
+	}while(input != "y" && input != "Y" && input == "n" && input == "N");
+	
 	if(input == "y" || input == "Y")
 	{
-		int *array = new int[amount];
+		try
+		{
+			short *array = new short[amount];
 			srand(time(0));
 			for(unsigned short idx = 0; idx < amount; array[idx++] = rand()%1000);
 			BubbleSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
 	else
+	{
+		try
 		{
 			long double *array = new long double[amount];
 			for(unsigned short idx = 0;  idx < amount;  std::stringstream(input) >> array[idx++])
@@ -38,55 +118,29 @@ int main()
 			BubbleSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
+}
 
+void printArray(long double *array, short amount)
+{
+	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
+	std::cout << array[amount-1] << "\n";
 	getch();
-	return(0);
 }
 
-void BubbleSort(int *array, unsigned short amount)
+void printArray(short *array, short amount)
 {
-	std::cout << "\n";
-	
 	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
-	std::cout << array[amount-1] << "\n";	//Ausgabe des unsortierten Arrays
+	std::cout << array[amount-1] << "\n";
-	
+	getch();
-	bool changed = true;
-	
-	for(unsigned short idx = 0; idx<amount-1 && changed; idx++)
-	{
-		changed = false;
-		
-		for(unsigned short idx2 = amount-1; idx2>idx; idx2--) if(array[idx2]<array[idx2-1])
-		{
-			int temp = array[idx2-1];
-			array[idx2-1] = array[idx2], array[idx2] = temp, changed = true;
-		}
-		
-		for(unsigned short idx2 = 0; idx2+1<amount; idx2++) std::cout << array[idx2] << ",	";
-		std::cout << array[amount-1] << "\n";	//Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
-}
-
-void BubbleSort(long double *array, unsigned short amount)
-{
-	std::cout << "\n";
-	
-	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
-	std::cout << array[amount-1] << "\n";	//Ausgabe des unsortierten Arrays
-	
-	bool changed = true;
-	
-	for(unsigned short idx = 0; idx<amount-1 && changed; idx++)
-	{
-		changed = false;
-		
-		for(unsigned short idx2 = amount-1; idx2>idx; idx2--) if(array[idx2]<array[idx2-1])
-		{
-			int temp = array[idx2-1];
-			array[idx2-1] = array[idx2], array[idx2] = temp, changed = true;
-		}
-		
-		for(unsigned short idx2 = 0; idx2+1<amount; idx2++) std::cout << array[idx2] << ",	";
-		std::cout << array[amount-1] << "\n";	//Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
 }

Sortieralgorithmen/InsertionSort.cpp

@@ -5,29 +5,99 @@
 #include<cstdlib>
 #include<ctime>
 
-void InsertionSort(long double *array, unsigned short amount);
+void InsertionSort(long double *array, short amount);
-void InsertionSort(int *array, unsigned short amount);
+void InsertionSort(int *array, short amount);
+void program();
+void printArray(long double *array, short amount);
+void printArray(short *array, short amount);
 
 int main()
 {
-	std::string input;
-	unsigned short amount = 1;
-	
 	std::cout << "Gib die Anzahl der Zahlen ein: ";
+	
+	program();
+	
+	getch();
+	return(0);
+}
+	
+void InsertionSort(long double *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	for(unsigned short idx = 1; idx < amount; idx++)
+	{
+		int temp = array[idx], idx2 = idx-1;
+	
+		while(idx2>=0 && array[idx2]>temp) array[idx2+1] = array[idx2--];
+		array[idx2+1] = temp;
+		
+		printArray(array, amount);
+	}
+}
+
+void InsertionSort(short *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	for(unsigned short idx = 1; idx < amount; idx++)
+	{
+		int temp = array[idx], idx2 = idx-1;
+	
+		while(idx2>=0 && array[idx2]>temp) array[idx2+1] = array[idx2--];
+		array[idx2+1] = temp;
+		
+		printArray(array, amount);
+	}
+}
+
+void program()
+{
+	std::string input;
+	short amount = 1;
+	
+	do
+	{
 		getline(std::cin, input);
 		std::stringstream(input) >> amount;
+		if(amount >= USHRT_MAX) std::cerr << "Error: Die eingegebene Anzahl ist zu gro\xE1 oder klein. Gib eine andere Anzahl ein: ";
+	}while(amount>=SHRT_MAX || amount<2);
 	
+	do
+	{
 		std::cout << "\nM\x94 \bchtest du mit zuf\x84lligen Zahlen arbeiten? y/n	";
 		getline(std::cin, input);
+		if(input != "y" && input != "Y" && input == "n" && input == "N") std::cerr << "Error: Diese Eingabe ist unzulässig. ";
+	}while(input != "y" && input != "Y" && input == "n" && input == "N");
+	
 	if(input == "y" || input == "Y")
 	{
-		int *array = new int[amount];
+		try
+		{
+			short *array = new short[amount];
 			srand(time(0));
 			for(unsigned short idx = 0; idx < amount; array[idx++] = rand()%1000);
 			InsertionSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
 	else
+	{
+		try
 		{
 			long double *array = new long double[amount];
 			for(unsigned short idx = 0;  idx < amount;  std::stringstream(input) >> array[idx++])
@@ -38,45 +108,29 @@ int main()
 			InsertionSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
+}
 
+void printArray(long double *array, short amount)
+{
+	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
+	std::cout << array[amount-1] << "\n";
 	getch();
-	return(0);
 }
 
-void InsertionSort(long double *array, unsigned short amount)
+void printArray(short *array, short amount)
 {
-	std::cout << "\n";
+	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
-	
+	std::cout << array[amount-1] << "\n";
-	for(unsigned short idx = 0; idx<amount-1; idx++) std::cout << array[idx] <<",	";
+	getch();
-	std::cout << array[amount-1] << "\n"; //Ausgabe des unsortierten Arrays
-	
-	for(unsigned short idx = 1; idx < amount; idx++)
-	{
-		int temp = array[idx], idx2 = idx-1;
-	
-		while(idx2>=0 && array[idx2]>temp) array[idx2+1] = array[idx2--];
-		array[idx2+1] = temp;
-		
-		for(idx2 = 0; idx2<amount-1; idx2++) std::cout << array[idx2] << ",	";
-		std::cout << array[amount-1] << "\n"; //Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
-}
-
-void InsertionSort(int *array, unsigned short amount)
-{
-	std::cout << "\n";
-	
-	for(unsigned short idx = 0; idx<amount-1; idx++) std::cout << array[idx] <<",	";
-	std::cout << array[amount-1] << "\n"; //Ausgabe des unsortierten Arrays
-	
-	for(unsigned short idx = 1; idx < amount; idx++)
-	{
-		int temp = array[idx], idx2 = idx-1;
-	
-		while(idx2>=0 && array[idx2]>temp) array[idx2+1] = array[idx2--];
-		array[idx2+1] = temp;
-		
-		for(unsigned short idx2 = 0; idx2<amount-1; idx2++) std::cout << array[idx2] << ",	";
-		std::cout << array[amount-1] << "\n"; //Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
 }

Sortieralgorithmen/SelectionSort.cpp

@@ -5,29 +5,107 @@
 #include<cstdlib>
 #include<ctime>
 
-void SelectionSort(long double *array, unsigned short amount);
+void SelectionSort(long double *array, short amount);
-void SelectionSort(int *array, unsigned short amount);
+void SelectionSort(int *array, short amount);
+void program();
+void printArray(long double *array, short amount);
+void printArray(short *array, short amount);
 
 int main()
 {
-	std::string input;
-	unsigned short amount = 1;
-	
 	std::cout << "Gib die Anzahl der Zahlen ein: ";
+	
+	program();
+	
+	getch();
+	return(0);
+}
+	
+void SelectionSort(long double *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	for(unsigned short idx = 0;  idx<amount-1; idx++)
+	{
+		unsigned short indexMin = idx;
+		for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
+		
+		if(indexMin!=idx)
+		{
+			long double temp = array[idx];
+			array[idx] = array[indexMin], array[indexMin] = temp;
+		}
+		
+		printArray(array, amount);
+	}
+}
+
+void SelectionSort(short *array, short amount)
+{
+	std::cout << "\n";
+	
+	printArray(array, amount);
+	
+	for(unsigned short idx = 0;  idx<amount-1; idx++)
+	{
+		unsigned short indexMin = idx;
+		for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
+		
+		if(indexMin!=idx)
+		{
+			long double temp = array[idx];
+			array[idx] = array[indexMin], array[indexMin] = temp;
+		}
+		
+		printArray(array, amount);
+	}
+}
+
+void program()
+{
+	std::string input;
+	short amount = 1;
+	
+	do
+	{
 		getline(std::cin, input);
 		std::stringstream(input) >> amount;
+		if(amount >= USHRT_MAX) std::cerr << "Error: Die eingegebene Anzahl ist zu gro\xE1 oder klein. Gib eine andere Anzahl ein: ";
+	}while(amount>=SHRT_MAX || amount<2);
 	
+	do
+	{
 		std::cout << "\nM\x94 \bchtest du mit zuf\x84lligen Zahlen arbeiten? y/n	";
 		getline(std::cin, input);
+		if(input != "y" && input != "Y" && input == "n" && input == "N") std::cerr << "Error: Diese Eingabe ist unzulässig. ";
+	}while(input != "y" && input != "Y" && input == "n" && input == "N");
+	
 	if(input == "y" || input == "Y")
 	{
-		int *array = new int[amount];
+		try
+		{
+			short *array = new short[amount];
 			srand(time(0));
 			for(unsigned short idx = 0; idx < amount; array[idx++] = rand()%1000);
 			SelectionSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
 	else
+	{
+		try
 		{
 			long double *array = new long double[amount];
 			for(unsigned short idx = 0;  idx < amount;  std::stringstream(input) >> array[idx++])
@@ -38,53 +116,29 @@ int main()
 			SelectionSort(array, amount);
 			delete[] array;
 		}
+		catch(std::bad_alloc& ba)
+		{
+			std::cerr << "Error: Es konnte kein Array dieser Gr\x94\xE1 \be erzeugt werden. Gib eine andere Anzahl ein: ";
+			program();
+		}
+		catch(std::exception& e)
+		{
+			std::cerr << "Error: Beim Erstellen des Arrays kam es zu einem unbekannten Fehler. Versuche es mit einer anderen Anzahl: ";
+			program();
+		}
+	}
+}
 
+void printArray(long double *array, short amount)
+{
+	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
+	std::cout << array[amount-1] << "\n";
 	getch();
-	return(0);
 }
 
-void SelectionSort(long double *array, unsigned short amount)
+void printArray(short *array, short amount)
 {
-	std::cout << "\n";
+	for(unsigned short idx = 0; idx+1<amount; idx++) std::cout << array[idx] << ",	";
-	
+	std::cout << array[amount-1] << "\n";
-	for(unsigned short idx =0; idx<amount-1; idx++) std::cout << array[idx] << ", ";
+	getch();
-	std::cout << array[amount-1] << "\n"; //Ausgabe des unsortierten Arrays
-	
-	for(unsigned short idx = 0;  idx<amount-1; idx++)
-	{
-		unsigned short indexMin = idx;
-		for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
-		
-		if(indexMin!=idx)
-		{
-			long double temp = array[idx];
-			array[idx] = array[indexMin], array[indexMin] = temp;
-		}
-		
-		for(unsigned short idx2 = 0; idx2<amount-1; idx2++) std::cout << array[idx2] << ", ";
-		std::cout << array[amount-1] << "\n"; //Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
-}
-
-void SelectionSort(int *array, unsigned short amount)
-{
-	std::cout << "\n";
-	
-	for(unsigned short idx =0; idx<amount-1; idx++) std::cout << array[idx] << ", ";
-	std::cout << array[amount-1] << "\n"; //Ausgabe des unsortierten Arrays
-	
-	for(unsigned short idx = 0;  idx<amount-1; idx++)
-	{
-		unsigned short indexMin = idx;
-		for(unsigned short idx2 = idx+1; idx2<amount; idx2++) if(array[idx2]<array[indexMin]) indexMin = idx2;
-		
-		if(indexMin!=idx)
-		{
-			long double temp = array[idx];
-			array[idx] = array[indexMin], array[indexMin] = temp;
-		}
-		
-		for(unsigned short idx2 = 0; idx2<amount-1; idx2++) std::cout << array[idx2] << ", ";
-		std::cout << array[amount-1] << "\n"; //Ausgabe des Arrays nach jedem Sortierungsschritt
-	}
 }