C++ (Cpp) _FP_FRAC_ZEROP_2 Examples

Example #1

File: ots_cmp.c Project: Drakey83/steamlink-sdk

static long
internal_equality (long al, long ah, long bl, long bh, long neq)
{
  FP_DECL_EX;
  FP_DECL_Q(A); FP_DECL_Q(B);
  long r;

  FP_UNPACK_RAW_Q(A, a);
  FP_UNPACK_RAW_Q(B, b);

  if ((A_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(A))
       || (B_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(B)))
    {
      /* EQ and NE signal invalid operation only if either operand is SNaN.  */
      if (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))
	{
	  FP_SET_EXCEPTION(FP_EX_INVALID);
	  FP_HANDLE_EXCEPTIONS;
	}
      return -1;
    }

  r = (A_e == B_e
       && _FP_FRAC_EQ_2 (A, B)
       && (A_s == B_s || (!A_e && _FP_FRAC_ZEROP_2(A))));
  r ^= neq;

  return r;
}

Example #2

File: e_ilogbl.c Project: JamesLinus/glibc-mips

int __ieee754_ilogbl (long double x)
{
  FP_DECL_EX;
  FP_DECL_Q(X);

/*
  FP_UNPACK_Q(X, x);
  switch (X_c)
    {
    case FP_CLS_ZERO:
      return FP_ILOGB0;
    case FP_CLS_NAN:
    case FP_CLS_INF:
      return FP_ILOGBNAN;
    default:
      return X_e;
    }
 */
  FP_UNPACK_RAW_Q(X, x);
  switch (X_e)
    {
    default:
      return X_e - _FP_EXPBIAS_Q;
    case 0:
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
      if (_FP_FRAC_ZEROP_4(X))
	return FP_ILOGB0;
      else
	{
	  _FP_I_TYPE shift;
	  _FP_FRAC_CLZ_4(shift, X);
	  shift -= _FP_FRACXBITS_Q;
	  return X_e - _FP_EXPBIAS_Q - 1 + shift;
	}
#else
      if (_FP_FRAC_ZEROP_2(X))
	return FP_ILOGB0;
      else
	{
	  _FP_I_TYPE shift;
	  _FP_FRAC_CLZ_2(shift, X);
	  shift -= _FP_FRACXBITS_Q;
	  return X_e - _FP_EXPBIAS_Q - 1 + shift;
	}
#endif
    case _FP_EXPBIAS_Q:
      return FP_ILOGBNAN;
    }
}