std::array

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Example

Run on Compiler Explorer

main: () = {
    a1: std::array          = (1, 2, 3);  // Construct with CTAD
    a2: std::array<int, 3>  = (1, 2, 3);
 
    // Container operations are supported
    std::sort(a1.begin(), a1.end());
    std::ranges::reverse_copy(a2, std::ostream_iterator<int>(std::cout, " "));
    std::cout << '\n';
 
    // Ranged for loop is supported
    a3: std::array<std::string, 2> = ("E", "\u018E");
    for a3 do (s) {
        std::cout << "(s)$ ";
    }
    std::cout << '\n';
 
    // Behavior of unspecified elements is the same as with built-in arrays
    _: std::array<int, 2> = ();  // List init, both elements are value
                                 // initialized, a6[0] = a6[1] = 0
    _: std::array<int, 2> = (1); // List init, unspecified element is value
                                 // initialized, a7[0] = 1, a7[1] = 0
}

Output

3 2 1 
E Ǝ