text: // Visual Studio needs to be 2013 onwards
  #if defined(_MSC_VER) && !defined(__CYGWIN__) && _MSC_VER < 1800
      
  // see http://www.johndcook.com/math_h.html
  
  int main()
  {
  }
  
  #else
          
  #include <assert.h>
  #include <fenv.h>
  
  int main()
  {
    #ifdef FE_DOWNWARD
    fesetround(FE_DOWNWARD);
    assert(fegetround()==FE_DOWNWARD);
    #endif
    
    #ifdef FE_TONEAREST
    fesetround(FE_TONEAREST);
    assert(fegetround()==FE_TONEAREST);
    #endif
  
    #ifdef FE_TOWARDZERO
    fesetround(FE_TOWARDZERO);
    assert(fegetround()==FE_TOWARDZERO);
    #endif
  
    #ifdef FE_UPWARD
    fesetround(FE_UPWARD);
    assert(fegetround()==FE_UPWARD);
    #endif
  }
  
  #endif
  