'type': incorrect usage of 'auto'

The indicated type cannot be declared with the auto keyword. For example, you cannot use the auto keyword to declare an array or a method return type.

1. Ensure that the initialization expression yields a valid type.

2. Ensure that you do not declare an array or a method return type.

The following example yields C3532 because the auto keyword cannot declare a method return type.

// C3532a.cpp  
// Compile with /Zc:auto  
auto f(){}   // C3532  

The following example yields C3532 because the auto keyword cannot declare an array.

// C3532b.cpp  
// Compile with /Zc:auto  
int main()  
{  
   int x[5];  
   auto a[5];            // C3532  
   auto b[1][2];         // C3532  
   auto y[5] = x;        // C3532  
   auto z[] = {1, 2, 3}; // C3532  
   auto w[] = x;         // C3532  
   return 0;  
}  

auto Keyword