76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include "matrix.h"
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// TODO Matrix-Funktionen implementieren
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Matrix createMatrix(unsigned int rows, unsigned int cols)
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{
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Matrix matrix;
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matrix.rows = rows;
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matrix.cols = cols;
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matrix.buffer = malloc(rows * cols * sizeof(float));
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if(matrix.buffer == NULL)
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{
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printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
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matrix.rows = 0;
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matrix.cols = 0;
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}
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return matrix;
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}
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void clearMatrix(Matrix *matrix)
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{
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free(matrix.buffer);
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matrix->buffer = NULL;
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matrix->rows = 0;
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matrix->cols = 0;
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}
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void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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{
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if(matrix.buffer == NULL)
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{
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printf("Fehler beim Setzen! Matrix nicht initialisiert");
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return;
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}
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if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
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{
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printf("Ungueltige Indizes beim Setzen!\n");
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return;
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}
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matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
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}
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MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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{
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if(matrix.buffer == NULL)
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{
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printf("Fehler beim Lesen! Matrix nicht initialisiert");
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return 0;
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}
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if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
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{
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printf("Ungueltige Indizes beim Lesen!\n");
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return 0;
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}
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return matrix.buffer[rowIdx * matrix.cols + colIdx];
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}
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Matrix add(const Matrix matrix1, const Matrix matrix2)
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{
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}
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Matrix multiply(const Matrix matrix1, const Matrix matrix2)
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{
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} |