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setMatrixAt

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This commit is contained in:
Laila Mueller 2025-11-09 23:27:21 +01:00
parent d354b45396
commit 147fd28bda
1 changed files with 7 additions and 4 deletions
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11
info2praktikum-neuronalesnetz/matrix.c
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@ -27,14 +27,17 @@ void clearMatrix(Matrix *matrix)
} }
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx) void setMatrixAt(MatrixType value, Matrix* matrix, unsigned int rowIdx, unsigned int colIdx)
{ {
if(rowIdx >= matrix->rows || colIdx >= matrix->cols){
return;
}
matrix->data[rowIdx * matrix->cols + colIdx] = value;
} }
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx) MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{ {
if(rowIdx > matrix.rows || colIdx > matrix.cols){ if(rowIdx >= matrix.rows || colIdx >= matrix.cols){
return 0; return 0;
} }
MatrixType value; MatrixType value;
@ -62,7 +65,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
for(size_t k = 0; k < matrix1.cols; k++){ for(size_t k = 0; k < matrix1.cols; k++){
sum += getMatrixAt(matrix1, i, k) * getMatrixAt(matrix2, k, j); sum += getMatrixAt(matrix1, i, k) * getMatrixAt(matrix2, k, j);
} }
setMatrixAt(sum, matrix3, i, j); setMatrixAt(sum, &matrix3, i, j);
} }
} }