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* [newlib-cygwin] nano-vfprintf_float.c: Fix check if negative for nans.
@ 2018-12-13 12:16 Corinna Vinschen
  0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2018-12-13 12:16 UTC (permalink / raw)
  To: newlib-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=b3692aed5e48b6107afba6aab21d03191dc80117

commit b3692aed5e48b6107afba6aab21d03191dc80117
Author: Jon Beniston <jon@beniston.com>
Date:   Tue Dec 11 21:03:03 2018 +0000

    nano-vfprintf_float.c: Fix check if negative for nans.

Diff:
---
 newlib/libc/stdio/nano-vfprintf_float.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/newlib/libc/stdio/nano-vfprintf_float.c b/newlib/libc/stdio/nano-vfprintf_float.c
index 071a09e..524f67a 100644
--- a/newlib/libc/stdio/nano-vfprintf_float.c
+++ b/newlib/libc/stdio/nano-vfprintf_float.c
@@ -39,6 +39,7 @@
 #include <string.h>
 #include <limits.h>
 #include <stdint.h>
+#include <math.h>
 #include <wchar.h>
 #include <sys/lock.h>
 #include <stdarg.h>
@@ -213,7 +214,7 @@ _printf_float (struct _reent *data,
     }
   if (isnan (_fpvalue))
     {
-      if (_fpvalue < 0)
+      if (signbit (_fpvalue))
 	pdata->l_buf[0] = '-';
       if (code <= 'G')		/* 'A', 'E', 'F', or 'G'.  */
 	cp = "NAN";


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