'symbol': cannot be used before it is initialized

The indicated symbol cannot be used before it is initialized. In practice, this means that a variable cannot be used to initialize itself.

1. Do not initialize a variable with itself.

The following example yields C3536 because each variable is initialized with itself.

// C3536.cpp  
// Compile with /Zc:auto  
int main()  
{  
   auto a = a;     //C3536  
   auto b = &b;    //C3536  
   auto c = c + 1; //C3536  
   auto* d = &d;   //C3536  
   auto& e = e;    //C3536  
   return 0;  
};  

auto Keyword