自定义C++异常类

 自定义C++异常类，代码如下：

#ifndef __MY_EXCEPTION_H__
#define __MY_EXCEPTION_H__

#define int Error_t 
#include 
#include 


class MyException : public std::exception
{
public:
    MyException(Error_t err, const std::string& detail = "")
        : m_err(err), m_strDetail(detail)
    {

    }

    const char* what() const noexcept override
    {
        return m_strDetail.c_str();
    }

    Error_t code() const noexcept
    {
        return m_err;
    }

private:
    Error_t m_err = 0;
    std::string m_strDetail;
};

#define CHECK_ERR(err) { 
    auto _err = (err); 
    if (_err != 0) { 
        std::cout << __FILE__ << ":" << __LINE__ << " " << _err << std::endl; 
        throw MyException{_err}; 
    } 
}

#endif //__MY_EXCEPTION_H__