Obtaining an address given a (run time) variable name

[DLearner via Digitalmars-d-learn]

// In the code below, what fn needs to go in the commented-out 
line,
// to make the program print 7, 11 rather than 7, 7?

```
void main() {
   import std.stdio;

   int IntVar1 = 5;
   int IntVar2 = 7;
   int IntVar3 = 11;

   int*   wkVarAddr;
   char[] wkVarName;


   wkVarAddr = &IntVar2;
   writeln("*wkVarAddr = ", *wkVarAddr);

   wkVarName = cast(char[])("IntVar3");
//   wkVarAddr = fn (wkVarName);
   writeln("*wkVarAddr = ", *wkVarAddr);
}
```