correct get_row

2025-05-31 13:33:09 +02:00
parent 3b57cfa1d2
commit 8d1fbc98e8
1 changed files with 9 additions and 4 deletions
--- a/lab10/jacobi/matrix.h
+++ b/lab10/jacobi/matrix.h
@@ -114,10 +114,15 @@ public:
  // scalar division
  Matrix &operator/=(double x);

-  std::vector<double> &get_row(int i) {
-    size_t start = i * this->numCols_;
-    return std::vector<double>(this->data_ + start,
-                               this->data_ + start + this->numCols_);
+  std::vector<double> get_row(int i) {
+    std::vector<double> row(0);
+    int start = this->cols() * i;
+    int end = this->cols() * i + cols();
+
+    for (int j = start; j < end; j++) {
+      row.push_back(this->data()[j]);
+    }
+    return row;
  }

 private: