Compiler Error C2052

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The latest version of this topic can be found at Compiler Error C2052.

type' : illegal type for case expression

Case expressions must be integer constants.

The following sample generates C2052:

// C2052.cpp  
int main() {  
   int index = 0;  
   switch (index) {  
      case 1:  
         return 24;  
      case 1.0:   // C2052  
      // try the following line instead  
      // case 2:  
         return 23;  
   }  
}