Matrix& operator*(Matrix const& rhs) { Matrix result(*this); return result *= rhs; } Now admittedly I have not thought this through completely for matrices (but this would be a normal pattern to follow). Separation of Concerns. When you design classes you should try and separate resource management from business logic.

Matrix operator-(const Matrix &t) const; Don't use void main() The only function signatures allowed by the C++ standard both require an int return type. See this question for details. Don't abuse using namespace std. Putting using namespace std at the top of every program is a bad habit that you'd do well to avoid. It's particularly bad to use ...

Mar 14, 2023 · class Matrix{ Matrix& operator*=(Matrix const& rhs); // modidies matrix, so it's a member function // friend declaration, i.e. "if a function like this is called, it has private access" friend Matrix operator+(Matrix const& lhs, Matrix const& rhs); // not a member function // scalar types template<typename U> friend Matrix operator*(Matrix ...

Dec 26, 2019 · C++ operator overloading for matrix operations. 3. Simple Matrix Template Class. 8.

Feb 26, 2020 · A lot of time you may pass a const reference of the matrix to a function. You should still be able to read data from the matrix. T const& operator()(const uint row, const uint col) const; If you want to fo whole hog you can add the [] operators. A tiny bit more work but doable. // Define inside Matrix so the template stuff // Is already available.

Nov 9, 2021 · I am refreshing my C++ programming skills, and I'm currently reading the book C++ 17 by Ivor Horton. The idea is to code some naive implementations of numerical algorithms (Root finding, solving a system of linear equations). To hone my skills, I decided to write a custom C++ Matrix class. This can be an interesting and useful exercise in itself.

Dec 7, 2023 · Use std::mdspan. Since you tagged the post c++23, consider using std::mdspan in your code. Not only can you use that internally to simplify accessing a given element using its row and column index, you can also have row() and col() return a …

Oct 26, 2018 · Not much formal education in programming. One year in school. We did C++ classes for most user defined objects. I've written a few different class variations for matrices but wonder about how usefu...

Jul 17, 2022 · Now the entire matrix class, except for the dynamic memory (contents of the matrix), are declared const so safer programming in class code, friend functions, and no longer need getters for safe user code. And the sizeof each …

Aug 11, 2022 · Span is interesting but use of the matrix class typically involves extracting a row or col vector but as a matrix with a single row or column. Simplifies operations on vectors by enforcing alignment. The code provides extractions of these subsets on a matrix.