#define isunordered(x,y) unordered(x, y)
#endif
+#if defined(__sun__) && !defined(NEED_LIBSUNMATH)
+
+#ifndef isnan
+# define isnan(x) \
+ (sizeof (x) == sizeof (long double) ? isnan_ld (x) \
+ : sizeof (x) == sizeof (double) ? isnan_d (x) \
+ : isnan_f (x))
+static inline int isnan_f (float x) { return x != x; }
+static inline int isnan_d (double x) { return x != x; }
+static inline int isnan_ld (long double x) { return x != x; }
+#endif
+
+#ifndef isinf
+# define isinf(x) \
+ (sizeof (x) == sizeof (long double) ? isinf_ld (x) \
+ : sizeof (x) == sizeof (double) ? isinf_d (x) \
+ : isinf_f (x))
+static inline int isinf_f (float x) { return isnan (x - x); }
+static inline int isinf_d (double x) { return isnan (x - x); }
+static inline int isinf_ld (long double x) { return isnan (x - x); }
+#endif
+#endif
+
typedef float float32;
typedef double float64;
#ifdef FLOATX80