蓝桥ROS机器人之现代C++学习笔记7.1 并行基础

程序如下：

#include 
#include 

int main() {
    std::thread t([](){
        std::cout << "hello world." << std::endl;
    });
    t.join();
    return 0;
}

使用thread。

更多案例：

// thread example
#include        // std::cout
#include          // std::thread
 
void foo() 
{
  // do stuff...
}

void bar(int x)
{
  // do stuff...
}

int main() 
{
  std::thread first (foo);     // spawn new thread that calls foo()
  std::thread second (bar,0);  // spawn new thread that calls bar(0)

  std::cout << "main, foo and bar now execute concurrently...\n";

  // synchronize threads:
  first.join();                // pauses until first finishes
  second.join();               // pauses until second finishes

  std::cout << "foo and bar completed.\n";

  return 0;
}

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不同版本c++支持语法格式有些差异，最好用c++20

g++ -std=c++20 -O2 -Wall -pedantic -pthread main.cpp && ./a.out

 

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