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-rw-r--r--libm/s_signbitf.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/libm/s_signbitf.c b/libm/s_signbitf.c
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+++ b/libm/s_signbitf.c
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+/* Return nonzero value if number is negative.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <math.h>
+
+#include "math_private.h"
+
+libm_hidden_proto(__signbitf)
+int
+__signbitf (float x)
+{
+ int32_t hx;
+
+ GET_FLOAT_WORD (hx, x);
+ return hx & 0x80000000;
+}
+libm_hidden_def(__signbitf)