diff options
Diffstat (limited to 'REORG.TODO/sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c')
-rw-r--r-- | REORG.TODO/sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c b/REORG.TODO/sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c new file mode 100644 index 0000000000..47a077f18b --- /dev/null +++ b/REORG.TODO/sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c @@ -0,0 +1,47 @@ +/* Total order operation on absolute values. dbl-64/wordsize-64 version. + Copyright (C) 2016-2017 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 <nan-high-order-bit.h> +#include <stdint.h> + +int +totalordermag (double x, double y) +{ + uint64_t ix, iy; + EXTRACT_WORDS64 (ix, x); + EXTRACT_WORDS64 (iy, y); + ix &= 0x7fffffffffffffffULL; + iy &= 0x7fffffffffffffffULL; +#if 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 > 0x7ff0000000000000ULL && iy > 0x7ff0000000000000ULL) + { + ix ^= 0x0008000000000000ULL; + iy ^= 0x0008000000000000ULL; + } +#endif + return ix <= iy; +} +#ifdef NO_LONG_DOUBLE +weak_alias (totalordermag, totalordermagl) +#endif |