67 lines
1.7 KiB
C
67 lines
1.7 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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int size = rows * cols;
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MatrixType *speicherbereich;
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speicherbereich = (MatrixType *)calloc(size, sizeof(MatrixType) * size);
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Matrix matrix = {rows, cols, &speicherbereich};
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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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for(int i = 0; i < rows; i++)
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{
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for(int j = 0; j < cols; j++)
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{
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setMatrixAt(0, matrix, i, j);
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}
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}
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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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matrix -> data[rowIdx * rows + 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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return (matrix->data[rowIdx * rows + 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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rows1 = matrix1->rows;
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rows2 = matrix2->rows;
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cols1 = matrix1->cols;
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cols2 = matrix2->cols;
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if((rows1 == 1 || rows2 == 1) && cols1 == cols2) //Broadcasting
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{
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//TODO: Broadcasting
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}
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else if(rows1 == rows2 && cols1 == cols2) //Addition nur moeglich, wenn beide AMtrizen gleiche ANzahl an Zeilen und Spalten haben
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{
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Matrix addition = createMatrix(rows1, cols2);
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MatrixType wert1;
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MatrixType wert2;
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for(int i = 0; i < rows; i++){
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wert1 = getMatrixAt(matrix1, rows1, cols1);
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wert2 = getMatrixAt(matrix2, rows2, cols2);
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MatrixType addierterWert = wert1 + wert2;
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setMatrixAt(addierterWert, addition, rows1, cols1);
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}
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}
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else{
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return 0;
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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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} |