support bazel complie this project and format code.

This commit is contained in:
zhangxing
2023-03-30 00:15:11 +08:00
committed by light-city
parent 1f86192576
commit 3c8a3f259b
641 changed files with 10349 additions and 9523 deletions

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@@ -0,0 +1,58 @@
//
// Created by light on 20-1-11.
//
#include <chrono>
#include <iostream>
#include <sstream>
#include <thread>
using namespace std;
int get_count() {
static int count = 0;
return ++count;
}
class task {
public:
task(int data) : data_(data) {}
/**
* this 标明按引用捕获外围对象(针对 lambda
* 表达式定义出现在一个非静态类成员内的情况); 注意默认捕获符 = 和 &
* 号可以自动捕获 this并且在 C++20 之前,在 = 后写 this 会导致出错)
* 本例子两次都按照第二次输出(this_thread::sleep_for(100ms);
* this 标明按引用捕获外围对象
*
*
* *this 标明按值捕获外围对象(针对 lambda
* 表达式定义出现在一个非静态类成员内的情况C++17 新增语法) 本例子正常输出
*/
auto lazy_launch() {
return [*this, count = get_count()]() mutable {
ostringstream oss;
oss << "Done work " << data_ << " (No. " << count << ") in thread "
<< this_thread::get_id() << '\n';
msg_ = oss.str();
calculate();
};
}
void calculate() {
this_thread::sleep_for(100ms);
cout << msg_;
}
private:
int data_;
string msg_;
};
int main() {
auto t = task{37};
thread t1{t.lazy_launch()};
thread t2{t.lazy_launch()};
t1.join();
t2.join();
}