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No commits in common. "dd2a621f11644921ef8b1cacafb904483c8f827e" and "648cbb1777bf5877cdf5793778454d7bb5cd8e06" have entirely different histories.
dd2a621f11
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648cbb1777
145
matrix.c
145
matrix.c
@ -1,6 +1,5 @@
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#include <stdlib.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string.h>
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#include <stdio.h>
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#include "matrix.h"
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#include "matrix.h"
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// TODO Matrix-Funktionen implementieren
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// TODO Matrix-Funktionen implementieren
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@ -8,13 +7,6 @@
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Matrix createMatrix(unsigned int rows, unsigned int cols)
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Matrix createMatrix(unsigned int rows, unsigned int cols)
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{
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{
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Matrix matrix;
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Matrix matrix;
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Matrix empty = {0, 0, NULL};
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if(rows == 0 || cols == 0)
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{
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//print("Fehler: Dimensionen muessen >= 1 sein!");
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return empty;
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}
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matrix.rows = rows;
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matrix.rows = rows;
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matrix.cols = cols;
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matrix.cols = cols;
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@ -22,7 +14,7 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
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if(matrix.buffer == NULL)
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if(matrix.buffer == NULL)
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{
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{
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//printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
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printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
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matrix.rows = 0;
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matrix.rows = 0;
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matrix.cols = 0;
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matrix.cols = 0;
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}
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}
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@ -32,7 +24,7 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
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void clearMatrix(Matrix *matrix)
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void clearMatrix(Matrix *matrix)
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{
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{
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free(matrix->buffer);
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free(matrix.buffer);
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matrix->buffer = NULL;
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matrix->buffer = NULL;
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matrix->rows = 0;
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matrix->rows = 0;
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@ -41,32 +33,32 @@ void clearMatrix(Matrix *matrix)
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void setMatrixAt(MatrixType value, Matrix *matrix, unsigned int rowIdx, unsigned int colIdx)
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void setMatrixAt(MatrixType value, Matrix *matrix, unsigned int rowIdx, unsigned int colIdx)
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{
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{
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if(matrix.buffer == NULL)
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if(matrix->buffer == NULL)
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{
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{
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//printf("Fehler beim Setzen! Matrix nicht initialisiert");
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printf("Fehler beim Setzen! Matrix nicht initialisiert");
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return;
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return;
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}
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}
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if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
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if(rowIdx >= matrix->rows || colIdx >= matrix->cols)
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{
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{
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//printf("Ungueltige Indizes beim Setzen!\n");
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printf("Ungueltige Indizes beim Setzen!\n");
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return;
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return;
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}
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}
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matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
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matrix->buffer[rowIdx * matrix->cols + colIdx] = value;
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}
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}
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MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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{
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{
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if(matrix.buffer == NULL)
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if(matrix.buffer == NULL)
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{
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{
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//printf("Fehler beim Lesen! Matrix nicht initialisiert");
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printf("Fehler beim Lesen! Matrix nicht initialisiert");
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return 0;
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return 0;
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}
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}
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if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
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if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
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{
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{
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//printf("Ungueltige Indizes beim Lesen!\n");
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printf("Ungueltige Indizes beim Lesen!\n");
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return 0;
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return 0;
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}
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}
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@ -75,134 +67,31 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
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Matrix add(const Matrix matrix1, const Matrix matrix2)
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Matrix add(const Matrix matrix1, const Matrix matrix2)
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{
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{
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float matrix1Wert = 0;
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float matrix2Wert = 0;
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float summe = 0;
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int broadcasting = 0;
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Matrix broadcastedmatrix1 = {0,0,NULL};
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Matrix broadcastedmatrix2 = {0,0,NULL};
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if((matrix1.rows != matrix2.rows) || (matrix1.cols != matrix2.cols))
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if((matrix1.rows != matrix2.rows) || (matrix1.cols != matrix2.cols))
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{
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{
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if((matrix1.rows != matrix2.rows) && (matrix1.cols == matrix2.cols))
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printf("Fehler bei Addition: Matrix Dimensionen passen nicht ueberein!\n");
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{
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if(matrix1.rows == 1)
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{
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broadcastedmatrix1 = createMatrix(matrix2.rows, matrix2.cols);
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for(int row = 0; row<matrix2.rows; row++)
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{
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for(int col = 0; col<matrix2.cols; col++)
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{
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matrix1Wert = getMatrixAt(matrix1, 0, col);
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setMatrixAt(matrix1Wert, broadcastedmatrix1, row, col);
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}
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}
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broadcasting = 1;
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}
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else if(matrix2.rows == 1)
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{
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broadcastedmatrix2 = createMatrix(matrix1.rows, matrix1.cols);
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for(int row = 0; row<matrix1.rows; row++)
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{
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for(int col = 0; col<matrix1.cols; col++)
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{
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matrix2Wert = getMatrixAt(matrix2, 0, col);
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setMatrixAt(matrix2Wert, broadcastedmatrix2, row, col);
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}
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}
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broadcasting = 2;
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}
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}
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else if((matrix1.rows == matrix2.rows) && (matrix1.cols != matrix2.cols))
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{
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if(matrix1.cols == 1)
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{
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broadcastedmatrix1 = createMatrix(matrix2.rows, matrix2.cols);
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for(int row = 0; row<matrix2.rows; row++)
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{
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for(int col = 0; col<matrix2.cols; col++)
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{
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matrix1Wert = getMatrixAt(matrix1, row, 0);
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setMatrixAt(matrix1Wert, broadcastedmatrix1, row, col);
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}
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}
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broadcasting = 1;
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}
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else if(matrix2.cols == 1)
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{
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broadcastedmatrix2 = createMatrix(matrix1.rows, matrix1.cols);
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for(int row = 0; row<matrix1.rows; row++)
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{
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for(int col = 0; col<matrix1.cols; col++)
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{
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matrix2Wert = getMatrixAt(matrix2, row, 0);
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setMatrixAt(matrix2Wert, broadcastedmatrix2, row, col);
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}
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}
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broadcasting = 2;
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}
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}
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else
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{
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//printf("Fehler bei Addition: Matrix Dimensionen stimmen nicht ueberein!\n");
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Matrix empty = {0, 0, NULL};
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Matrix empty = {0, 0, NULL};
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return empty;
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return empty;
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}
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}
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}
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Matrix ergebnisMatrix;
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float matrix1Wert = 0;
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float matrix2Wert = 0;
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float summe = 0;
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switch (broadcasting)
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Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
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{
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case 0:
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case 2:
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ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
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break;
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case 1:
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ergebnisMatrix = createMatrix(matrix2.rows, matrix2.cols);
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break;
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}
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for(int row = 0; row < ergebnisMatrix.rows; row++)
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for(int row = 0; row < ergebnisMatrix.rows; row++)
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{
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{
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for(int col = 0; col < ergebnisMatrix.cols; col++)
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for(int col = 0; col < ergebnisMatrix.cols; col++)
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{
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if(broadcasting == 0)
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{
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{
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matrix1Wert = getMatrixAt(matrix1, row, col);
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matrix1Wert = getMatrixAt(matrix1, row, col);
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matrix2Wert = getMatrixAt(matrix2, row, col);
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matrix2Wert = getMatrixAt(matrix2, row, col);
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summe = matrix1Wert + matrix2Wert;
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summe = matrix1Wert + matrix2Wert;
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}
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else if(broadcasting == 1)
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{
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matrix1Wert = getMatrixAt(broadcastedmatrix1, row, col);
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matrix2Wert = getMatrixAt(matrix2, row, col);
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summe = matrix1Wert + matrix2Wert;
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}
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else if(broadcasting == 2)
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{
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matrix1Wert = getMatrixAt(matrix1, row, col);
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matrix2Wert = getMatrixAt(broadcastedmatrix2, row, col);
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summe = matrix1Wert + matrix2Wert;
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}
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setMatrixAt(summe, ergebnisMatrix, row, col);
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setMatrixAt(summe, &ergebnisMatrix, row, col);
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}
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}
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}
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}
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clearMatrix(&broadcastedmatrix1);
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clearMatrix(&broadcastedmatrix2);
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return ergebnisMatrix;
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return ergebnisMatrix;
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}
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}
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@ -210,7 +99,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
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{
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{
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if(matrix1.cols != matrix2.rows)
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if(matrix1.cols != matrix2.rows)
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{
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{
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//printf("Fehler bei Multiplikation: Matrix Dimensionen passen nicht ueberein!\n");
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printf("Fehler bei Multiplikation: Matrix Dimensionen passen nicht ueberein!\n");
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Matrix empty = {0, 0, NULL};
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Matrix empty = {0, 0, NULL};
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return empty;
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return empty;
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}
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}
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@ -230,7 +119,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
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erg += getMatrixAt(matrix1, row, k) * getMatrixAt(matrix2, k, col);
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erg += getMatrixAt(matrix1, row, k) * getMatrixAt(matrix2, k, col);
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}
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}
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setMatrixAt(erg, ergebnisMatrix, row, col);
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setMatrixAt(erg, &ergebnisMatrix, row, col);
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}
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}
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}
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}
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