c++打印调试定位信息

需求

在没有GLOG可用的前提下使用std::cout对代码进行简单调试。

解决

使用自带marco可以作为平替，上代码

#include <iostream>

class A
{
public:
    void show()
    {
        std::cout << "This is " << __func__ << std::endl;
    }
};

int main()
{
    A a;
    std::cout << "Compiled at " << __DATE__ << " " << __TIME__ << std::endl;
    std::cout << "Start at " << __LINE__ << std::endl;
    a.show();
    std::cout << "Finish "<< __func__ <<" at " << __LINE__ << std::endl;
    return 0;
}

效果

输出结果如下

Compiled at Jul 12 2023 08:49:04
Start at 16
This is show
Finish main at 18