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In C++, how do I create a multidimensional std::array? I've tried this:
std::array<std::array<int, 3>, 3> arr = {{5, 8, 2}, {8, 3, 1}, {5, 3, 9}}; But it doesn't work. What am I doing wrong and how do I fix this?
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A simple solution is to use the clone() method to clone a 2-dimensional array in Java. The following solution uses a for loop to iterate over each row of the original array and then calls the clone() method to copy each row.
Multidimensioal arrays are more than double pointers making it a pain to pass into functions correctly. Most of the time, I've seen them just passed as a raw address to a double pointer which defeats the intrinsic math the compiler will do for you.
You need extra brackets, until c++14 proposal kicks in.
std::array<std::array<int, 3>, 3> arr = {{{5, 8, 2}, {8, 3, 1}, {5, 3, 9}}}; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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