C++ passing function arguments to a thread

To pass function arguments to a thread in C++, you can use the std::thread class from the C++ Standard Library. Here are the steps to do so:

1. Define the function that will be executed by the thread. This function can take one or more arguments.

2. Create an instance of the std::thread class and pass the function as the first argument. Any additional arguments required by the function should be passed after the function argument.

3. Start the execution of the thread by calling the std::thread object's join or detach member function. The join function will block the calling thread until the created thread finishes its execution, while the detach function will allow the created thread to execute independently.

Here is an example code snippet that demonstrates these steps:

#include <iostream>
#include <thread>

// Step 1: Define the function
void myFunction(int arg1, float arg2, const std::string& arg3) {
    // Function body
    std::cout << "Argument 1: " << arg1 << std::endl;
    std::cout << "Argument 2: " << arg2 << std::endl;
    std::cout << "Argument 3: " << arg3 << std::endl;
}

int main() {
    // Step 2: Create a thread and pass the function arguments
    int arg1 = 10;
    float arg2 = 3.14;
    std::string arg3 = "Hello";

    std::thread myThread(myFunction, arg1, arg2, arg3);

    // Step 3: Start the thread execution
    myThread.join();

    return 0;
}

In this example, the myFunction function takes three arguments: an integer arg1, a float arg2, and a const reference to a string arg3. The main function creates a thread myThread and passes the function arguments arg1, arg2, and arg3 to it. Finally, the join function is called to start the execution of the thread and wait for it to finish.