Multiply defined section是怎么造成的

1、检查mmp，是否有2个一样的cpp文件

2、

The solution for my post is that is.. I have defined the member functions in class.. I am safe guarding the header file
ifndef __SYM_H_
class abc{

int xyz()
{
// Done some thing here
}
};

#endif

The red defintion is the real culprit done the mistake to that error..

I posted the solution so that it will be useful to someone if they need help..

Happy Coding..

 

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