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       tanother day, another __isNaN - plan9port - [fork] Plan 9 from user space
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       ---
   DIR commit ada7ea055b221d489ebfbf2b2900b4e39f3fd043
   DIR parent fdfecd686054be1aac715fb3b99669873df002bb
  HTML Author: rsc <devnull@localhost>
       Date:   Fri,  6 Apr 2007 13:27:55 +0000
       
       another day, another __isNaN
       
       Diffstat:
         M src/lib9/fmt/nan64.c                |       3 ++-
       
       1 file changed, 2 insertions(+), 1 deletion(-)
       ---
   DIR diff --git a/src/lib9/fmt/nan64.c b/src/lib9/fmt/nan64.c
       t@@ -31,7 +31,8 @@ __isNaN(double d)
        
                p = &d;
                x = *(uvlong*)p;
       -        return (ulong)((x>>52)&0x7FF)==0x7FF && !__isInf(d, 0);
       +        /* IEEE 754: exponent bits 0x7FF and non-zero mantissa */
       +        return (x&uvinf) == uvinf && (x&~uvneginf) != 0;
        }
        
        double