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#include <iostream>
using namespace std;
 
class MyClass1
{
    private:
       static const std::string MyConst; // = "SomeText";
              const std::string MyConst2; // = "SomeText";
};
 
class MyClass2
{
    private:
       static const std::string MyConst; // = "SomeText";
       static const std::string MyConst2; // = "SomeText";
};
 
int main() {
	MyClass1 a1;
	MyClass1 a2(a1);
 
	a1 = a2;
 
	MyClass2 b1;
	MyClass2 b2(b1);
 
	b1 = b2;
 
	return 0;
}

prog.cpp: In function ‘int main()’:
prog.cpp:22:7: error: use of deleted function ‘MyClass1& MyClass1::operator=(const MyClass1&)’
  a1 = a2;
       ^~
prog.cpp:4:7: note: ‘MyClass1& MyClass1::operator=(const MyClass1&)’ is implicitly deleted because the default definition would be ill-formed:
 class MyClass1
       ^~~~~~~~
prog.cpp:4:7: error: passing ‘const string {aka const std::__cxx11::basic_string<char>}’ as ‘this’ argument discards qualifiers [-fpermissive]
In file included from /usr/include/c++/6/string:52:0,
                 from /usr/include/c++/6/bits/locale_classes.h:40,
                 from /usr/include/c++/6/bits/ios_base.h:41,
                 from /usr/include/c++/6/ios:42,
                 from /usr/include/c++/6/ostream:38,
                 from /usr/include/c++/6/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/6/bits/basic_string.h:565:7: note:   in call to ‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’
       operator=(const basic_string& __str)
       ^~~~~~~~

Standard output is empty