Lines Matching refs:nan
21 /* This is needed to pick up the NAN macro on some systems. */
51 #ifndef NAN
53 #define NAN DBL_QNAN
55 #define NAN (0.0 / 0.0)
305 /* A NaN is valid with any low part. */
484 /* If the exponent indicates a NaN, we don't have information to
486 don't try to preserve the type of NaN. FIXME. */
489 int nan = mant_bits_set (fmt, ufrom);
498 if (nan)
499 dto = NAN;
636 /* NaN. */
639 /* Be sure it's not infinity, but NaN value is irrelevant. */
771 ieee_test (- NAN);
773 ieee_test (NAN);
