-OnCstVar: Disable CONST Variable by Constant Replacement

OPTIMIZATIONS

Compilation Unit

  -OnCstVar
  
  

None

None

None

None

This option provides you with a way to switch OFF the replacement of CONST variable by the constant value.

  const int MyConst = 5;
  
  

  int i;
  
  

  void foo(void) {
  
  

    i = MyConst;
  
  

  }
  
  

If the -OnStVar option is not set, the compiler replaces each occurrence of MyConst with its constant value 5; that is i = MyConst is transformed into i = 5;. The Memory or ROM needed for the MyConst constant variable is optimized as well. With the -OnCstVar option set, this optimization is avoided. This is logical only if you want unoptimized code.