Compiler Warning (level 1) C4553


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The latest version of this topic can be found at Compiler Warning (level 1) C4553.

operator' : operator has no effect; did you intend 'operator'?

If an expression statement has an operator with no side effect as the top of the expression, it's probably a mistake.

The following sample generates C4553:

// C4553.cpp  
// compile with: /W1  
int func()  
   return 0;  
int main()  
   int i;  
   i == func();   // C4553  
   // try the following line instead  
   // i = func();