What is the method for obtaining time intervals in C++?

6 months ago

2 minutes

One common way to get time intervals in C++ is by using the methods in the std::chrono namespace from the header file. Here is a simple example code demonstrating how to get the time interval between two time points:

#include <iostream>
#include <chrono>

int main() {
    auto start = std::chrono::high_resolution_clock::now(); // 获取起始时间点

    // 在这里进行一些代码操作

    auto end = std::chrono::high_resolution_clock::now(); // 获取结束时间点

    // 计算时间间隔
    auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();

    std::cout << "Time taken: " << duration << " milliseconds" << std::endl;

    return 0;
}

In the above code, we first obtain the start and end time points, calculate the time interval between them, and then output it in milliseconds to the console. You can choose different time interval units as needed, such as std::chrono::seconds, std::chrono::minutes, etc.