這個程序介紹了sort()函數個各種用法。
源程序來自:std::sort - cppreference.com。
程序如下:
#include #include#include #include int main() { std::array s = {5, 7, 4, 2, 8, 6, 1, 9, 0, 3}; // sort using the default operator< std::sort(s.begin(), s.end()); for (int a : s) { std::cout << a << " "; } std::cout << '\n'; // sort using a standard library compare function object std::sort(s.begin(), s.end(), std::greater ()); for (int a : s) { std::cout << a << " "; } std::cout << '\n'; // sort using a custom function object struct { bool operator()(int a, int b) { return a < b; } } customLess; std::sort(s.begin(), s.end(), customLess); for (int a : s) { std::cout << a << " "; } std::cout << '\n'; // sort using a lambda expression std::sort(s.begin(), s.end(), [](int a, int b) { return b < a; }); for (int a : s) { std::cout << a << " "; } std::cout << '\n'; }
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