tnew __isNaN (Scott Schwartz) - plan9port - [fork] Plan 9 from user space
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---
DIR commit fdfecd686054be1aac715fb3b99669873df002bb
DIR parent 9d53e3b430e56c740924f02fbb2695ea3597e13e
HTML Author: rsc <devnull@localhost>
Date: Fri, 6 Apr 2007 01:49:05 +0000
new __isNaN (Scott Schwartz)
Diffstat:
M src/lib9/fmt/nan64.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
---
DIR diff --git a/src/lib9/fmt/nan64.c b/src/lib9/fmt/nan64.c
t@@ -9,10 +9,6 @@
#include "fmt.h"
#include "fmtdef.h"
-#if defined (__APPLE__) || (__powerpc__)
-#define _NEEDLL
-#endif
-
static uvlong uvnan = ((uvlong)0x7FF00000<<32)|0x00000001;
static uvlong uvinf = ((uvlong)0x7FF00000<<32)|0x00000000;
static uvlong uvneginf = ((uvlong)0xFFF00000<<32)|0x00000000;
t@@ -35,7 +31,7 @@ __isNaN(double d)
p = &d;
x = *(uvlong*)p;
- return (ulong)(x>>32)==0x7FF00000 && !__isInf(d, 0);
+ return (ulong)((x>>52)&0x7FF)==0x7FF && !__isInf(d, 0);
}
double