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Alle Unittests erfolgreich bestanden

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silvana884 2025-11-16 20:47:02 +01:00
parent ad9a44673c
commit 522ada29c6
1 changed files with 26 additions and 14 deletions
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40
matrix.c
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@ -6,30 +6,39 @@
Matrix createMatrix(unsigned int rows, unsigned int cols) Matrix createMatrix(unsigned int rows, unsigned int cols)
{ {
if(rows && cols){
Matrix matrix; Matrix matrix;
matrix.rows = rows; matrix.rows = rows;
matrix.cols = cols; matrix.cols = cols;
matrix.buffer = malloc(rows * cols * sizeof(MatrixType)); matrix.buffer = malloc(rows * cols * sizeof(MatrixType));
matrix.buffer = malloc(rows * cols * sizeof(MatrixType));
if (!matrix.buffer) {
matrix.rows = 0;
matrix.cols = 0;
return matrix; // malloc ist fehlgeschlagen
}
for (int i = 0; i < (rows * cols); i++) for (int i = 0; i < (rows * cols); i++)
matrix.buffer[i] = 0; matrix.buffer[i] = 0;
return matrix; return matrix;
}
Matrix matrix;
matrix.rows = 0;
matrix.cols = 0;
matrix.buffer = 0;
return matrix;
} }
void clearMatrix(Matrix *matrix) void clearMatrix(Matrix *matrix)
{ {
int rowsM = matrix->rows; free(matrix->buffer);
int colsM = matrix->cols; matrix->buffer = NULL;
for(int i = 0; i < rowsM; i++) matrix->rows = 0;
{ matrix->cols = 0;
for(int j = 0; j < colsM; j++)
{
matrix->buffer[i * colsM + j] = 0;
}
}
} }
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx) void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
@ -39,7 +48,10 @@ void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx) MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{ {
return matrix.buffer[rowIdx * matrix.cols + colIdx]; if(rowIdx >= matrix.rows || colIdx >= matrix.cols){
return UNDEFINED_MATRIX_VALUE;
}
return matrix.buffer[rowIdx * matrix.cols + colIdx];
} }
Matrix add(const Matrix matrix1, const Matrix matrix2) Matrix add(const Matrix matrix1, const Matrix matrix2)
@ -48,9 +60,9 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
int rows2 = rows(matrix2); int rows2 = rows(matrix2);
int cols1 = cols(matrix1); int cols1 = cols(matrix1);
int cols2 = cols(matrix2); int cols2 = cols(matrix2);
if((rows1 == 1 || rows2 == 1) && cols1 == cols2) //Broadcasting if((cols1 == 1 || cols2 == 1) && rows1 == rows2) //Broadcasting
{ {
if(rows1 == 1) //Wenn die erste Matrix der Vektor ist if(cols1 == 1) //Wenn die erste Matrix der Vektor ist
{ {
return broadcasting(matrix1, matrix2); return broadcasting(matrix1, matrix2);
} }
@ -90,7 +102,7 @@ Matrix broadcasting(const Matrix vektor, const Matrix matrix)
{ {
for(int j = 0; j < colsM; j++){ for(int j = 0; j < colsM; j++){
wert = getMatrixAt(matrix, i, j); wert = getMatrixAt(matrix, i, j);
koordinate = getMatrixAt(vektor, j, 0); koordinate = getMatrixAt(vektor, i, 0);
setMatrixAt((koordinate + wert), result, i, j); setMatrixAt((koordinate + wert), result, i, j);
} }
} }