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C++17のモダンなループ

Last updated at Posted at 2023-11-04

C++17のモダンなループ

C++17ではモダンなループを書くことができます。例えば

for(int i=0; i<as.size(); i++) {
    std::cout << as[i] << std::endl;
}

というループは

for(auto a: as) {
    std::cout << a << std::endl;
}

と書くことがきます。autoは動的型付けしてくれます

さらに構造化束縛を使えばさらにモダンな見た目になります。

/*
Point (x, y)
*/
for(auto [xx, yy] : points) {
    処理...
}
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