extern double double_approx (const cl_LF& x);
-#ifdef WANT_OBFUSCATING_OPERATORS
// This could be optimized to use in-place operations.
inline cl_LF& operator+= (cl_LF& x, const cl_LF& y) { return x = x + y; }
inline cl_LF& operator++ /* prefix */ (cl_LF& x) { return x = plus1(x); }
inline void operator-- /* postfix */ (cl_LF& x, int dummy) { (void)dummy; x = minus1(x); }
inline cl_LF& operator*= (cl_LF& x, const cl_LF& y) { return x = x * y; }
inline cl_LF& operator/= (cl_LF& x, const cl_LF& y) { return x = x / y; }
-#endif
// Runtime typing support.