example2_dynamic_extents.cpp

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

int main() {
    std::vector<double> data(24);
    for (int i = 0; i < 24; ++i) {
        data[i] = i * 1.1;
    }
    
    // Create a 3D mdspan with dynamic extents
    std::mdspan<double, std::dextents<std::size_t, 3>> volume(data.data(), 2, 3, 4);
    
    // Access and print elements
    for (std::size_t i = 0; i < volume.extent(0); ++i) {
        for (std::size_t j = 0; j < volume.extent(1); ++j) {
            for (std::size_t k = 0; k < volume.extent(2); ++k) {
                std::cout << volume[i, j, k] << " ";
            }
            std::cout << std::endl;
        }
        std::cout << std::endl;
    }
    
    return 0;
}