How do I avoid exceptions and handle errors std::mdspan (proposals) in C++?

In C++, managing errors effectively is crucial, especially when working with new features such as std::mdspan. While exceptions provide a way to handle errors, there are times when you may want to avoid them altogether. This can be achieved through careful programming practices and the use of error codes or assertions.

Below is an example demonstrating how to avoid exceptions while using std::mdspan by utilizing error codes for error handling. This method allows for a smoother error recovery process.


        #include <mdspan>
        #include <iostream>
        #include <vector>

        // Function to create a mdspan and check for errors
        int create_mdspan(const std::vector<int>& data, std::mdspan<int, std::extents<std::dynamic_extent>>& mspan) {
            if (data.empty()) {
                return -1; // Error code for empty data
            }
            mspan = std::mdspan<int, std::extents<std::dynamic_extent>>(data.data(), data.size());
            return 0; // Success
        }

        int main() {
            std::vector<int> data = {1, 2, 3, 4, 5};
            std::mdspan<int, std::extents<std::dynamic_extent>> mspan;

            int result = create_mdspan(data, mspan);
            if (result != 0) {
                std::cerr << "Error creating mdspan: " << result << std::endl;
                return result;
            }

            // Use mspan...
            for (size_t i = 0; i < mspan.extent(0); ++i) {
                std::cout << mspan(i) << " ";
            }
            return 0;
        }

C++ std::mdspan error handling exceptions error codes programming practices

How do I avoid exceptions and handle errors std::mdspan (proposals) in C++?

Popular Topics

Recent Languages

How do I avoid exceptions and handle errors std::mdspan (proposals) in C++?

Related Questions

Popular Topics

Recent Languages