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Diffstat (limited to 'sysdeps/ieee754/flt-32/s_totalordermagf.c')
-rw-r--r--sysdeps/ieee754/flt-32/s_totalordermagf.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/ieee754/flt-32/s_totalordermagf.c b/sysdeps/ieee754/flt-32/s_totalordermagf.c
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index 0000000000..7c01edc29a
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+++ b/sysdeps/ieee754/flt-32/s_totalordermagf.c
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+/* Total order operation on absolute values. flt-32 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <math.h>
+#include <math_private.h>
+#include <stdint.h>
+
+int
+totalordermagf (float x, float y)
+{
+ uint32_t ix, iy;
+ GET_FLOAT_WORD (ix, x);
+ GET_FLOAT_WORD (iy, y);
+ ix &= 0x7fffffff;
+ iy &= 0x7fffffff;
+#ifdef HIGH_ORDER_BIT_IS_SET_FOR_SNAN
+ /* For the preferred quiet NaN convention, this operation is a
+ comparison of the representations of the absolute values of the
+ arguments. If both arguments are NaNs, invert the
+ quiet/signaling bit so comparing that way works. */
+ if (ix > 0x7f800000 && iy > 0x7f800000)
+ {
+ ix ^= 0x00400000;
+ iy ^= 0x00400000;
+ }
+#endif
+ return ix <= iy;
+}