diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_setpayload_main.c')
-rw-r--r-- | sysdeps/ieee754/dbl-64/s_setpayload_main.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_setpayload_main.c b/sysdeps/ieee754/dbl-64/s_setpayload_main.c deleted file mode 100644 index c6128c7fe4..0000000000 --- a/sysdeps/ieee754/dbl-64/s_setpayload_main.c +++ /dev/null @@ -1,69 +0,0 @@ -/* Set NaN payload. dbl-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> - -#define SET_HIGH_BIT (HIGH_ORDER_BIT_IS_SET_FOR_SNAN ? SIG : !SIG) -#define BIAS 0x3ff -#define PAYLOAD_DIG 51 -#define EXPLICIT_MANT_DIG 52 - -int -FUNC (double *x, double payload) -{ - uint32_t hx, lx; - EXTRACT_WORDS (hx, lx, payload); - int exponent = hx >> (EXPLICIT_MANT_DIG - 32); - /* Test if argument is (a) negative or too large; (b) too small, - except for 0 when allowed; (c) not an integer. */ - if (exponent >= BIAS + PAYLOAD_DIG - || (exponent < BIAS && !(SET_HIGH_BIT && hx == 0 && lx == 0))) - { - INSERT_WORDS (*x, 0, 0); - return 1; - } - int shift = BIAS + EXPLICIT_MANT_DIG - exponent; - if (shift < 32 - ? (lx & ((1U << shift) - 1)) != 0 - : (lx != 0 || (hx & ((1U << (shift - 32)) - 1)) != 0)) - { - INSERT_WORDS (*x, 0, 0); - return 1; - } - if (exponent != 0) - { - hx &= (1U << (EXPLICIT_MANT_DIG - 32)) - 1; - hx |= 1U << (EXPLICIT_MANT_DIG - 32); - if (shift >= 32) - { - lx = hx >> (shift - 32); - hx = 0; - } - else if (shift != 0) - { - lx = (lx >> shift) | (hx << (32 - shift)); - hx >>= shift; - } - } - hx |= 0x7ff00000 | (SET_HIGH_BIT ? 0x80000 : 0); - INSERT_WORDS (*x, hx, lx); - return 0; -} |