对于不同的编译器，c++模板类的行为是不同的

I am working with templates in C++. Is there any difference in using templates and friend class when compiled with MSVC compiler and when using Mingw gcc compiler. My code successfully compiles and gives the desired output when compiled with MSVC but it gives error when compiled with gcc. Below is my code,I am working with templates in C++. Is there an