Changeset 94446 in vbox for trunk/include/iprt/types.h

Timestamp:

Apr 1, 2022 6:53:30 PM (3 years ago)

Author:

vboxsync

Message:

iprt/types.h: Added RTFLOAT80U_IS_QUIET_OR_SIGNALLING_NAN and documented RTFLOAT80U_IS_NAN. bugref:9898

File:

• trunk/include/iprt/types.h (modified) (1 diff)

trunk/include/iprt/types.h

@@ -1188 +1188 @@
      && ((a_pr80)->s.uMantissa & (RT_BIT_64(63) | RT_BIT_64(62))) == (RT_BIT_64(63) | RT_BIT_64(62)) \
      && ((a_pr80)->s.uMantissa & (RT_BIT_64(62) - 1)) != 0)
+/** Signalling-, Quiet- or Pseudo-NaN. */
 # define RTFLOAT80U_IS_NAN(a_pr80) \
     ((a_pr80)->s.uExponent == 0x7fff && ((a_pr80)->s.uMantissa & (RT_BIT_64(63) - 1)) != 0)
+/** Signalling- or Quiet-Nan, but not Pseudo-NaN. */
+# define RTFLOAT80U_IS_QUIET_OR_SIGNALLING_NAN(a_pr80) \
+    ((a_pr80)->s.uExponent == 0x7fff && ((a_pr80)->s.uMantissa > RT_BIT_64(63)))
 # define RTFLOAT80U_IS_INDEFINITE(a_pr80) \
     ((a_pr80)->s.uExponent == 0x7fff && (a_pr80)->s.uMantissa == (RT_BIT_64(63) | RT_BIT_64(62)))