diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/s_issignalingl.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-128/s_issignalingl.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_issignalingl.c b/sysdeps/ieee754/ldbl-128/s_issignalingl.c deleted file mode 100644 index 02d6a0ae07..0000000000 --- a/sysdeps/ieee754/ldbl-128/s_issignalingl.c +++ /dev/null @@ -1,46 +0,0 @@ -/* Test for signaling NaN. - Copyright (C) 2013-2017 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> - -int -__issignalingl (_Float128 x) -{ - u_int64_t hxi, lxi __attribute__ ((unused)); - GET_LDOUBLE_WORDS64 (hxi, lxi, x); -#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN - /* We only have to care about the high-order bit of x's significand, because - having it set (sNaN) already makes the significand different from that - used to designate infinity. */ - return ((hxi & UINT64_C (0x7fff800000000000)) - == UINT64_C (0x7fff800000000000)); -#else - /* To keep the following comparison simple, toggle the quiet/signaling bit, - so that it is set for sNaNs. This is inverse to IEEE 754-2008 (as well as - common practice for IEEE 754-1985). */ - hxi ^= UINT64_C (0x0000800000000000); - /* If lxi != 0, then set any suitable bit of the significand in hxi. */ - hxi |= (lxi | -lxi) >> 63; - /* We have to compare for greater (instead of greater or equal), because x's - significand being all-zero designates infinity not NaN. */ - return (hxi & UINT64_C (0x7fffffffffffffff)) > UINT64_C (0x7fff800000000000); -#endif -} -libm_hidden_def (__issignalingl) |