@@ -328,6 +328,7 @@ public:
bool maybe_isnan (bool sign) const;
bool maybe_isinf () const;
bool signbit_p (bool &signbit) const;
+ bool nan_signbit_p (bool &signbit) const;
private:
void verify_range ();
bool normalize_kind ();
@@ -1358,4 +1359,20 @@ frange::signbit_p (bool &signbit) const
return false;
}
+// If range has a NAN with a known sign, set it in SIGNBIT and return
+// TRUE.
+
+inline bool
+frange::nan_signbit_p (bool &signbit) const
+{
+ if (undefined_p ())
+ return false;
+
+ if (m_pos_nan == m_neg_nan)
+ return false;
+
+ signbit = m_neg_nan;
+ return true;
+}
+
#endif // GCC_VALUE_RANGE_H