用C++实现类似JAVA类中的toString函数

最近在开发时，发现C++的类中没有JAVA类中toString函数，打印对象的信息十分麻烦，就用宏自己实现了一个

 

主要代码如下

 

 

#define PRINT_CLASS_INFO_BEGIN(sstream, className) sstream << "ClassName:" << #className << ", Addr:" << this << "[";

#define PRINT_CLASS_PARA(sstream, para) sstream << #para << " = " << para;

#define PRINT_CLASS_INFO_END(sstream) sstream << "]" << std::endl;

 

class MyClass

{

 

public:

 

 virtual string toString();

private:

int m_iPara1;

string m_strPara2;

}

 

 

string MyClass::toString

{

stringstream sstream;

 

PRINT_CLASS_INFO_BEGIN(sstream, MyClass)

PRINT_CLASS_PARA(sstream, m_iPara1)

PRINT_CLASS_PARA(sstream, m_strPara2)

PRINT_CLASS_INFO_END(sstream)

 

return sstream.str();

}