Current File : //glibc-2.29/sysdeps/ieee754/dbl-64/s_getpayload.c
/* Get NaN payload. dbl-64 version.
Copyright (C) 2016-2019 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 <fix-int-fp-convert-zero.h>
#include <math.h>
#include <math_private.h>
#include <libm-alias-double.h>
#include <stdint.h>
double
__getpayload (const double *x)
{
uint32_t hx, lx;
EXTRACT_WORDS (hx, lx, *x);
hx &= 0x7ffff;
uint64_t ix = ((uint64_t) hx << 32) | lx;
if (FIX_INT_FP_CONVERT_ZERO && ix == 0)
return 0.0f;
return (double) ix;
}
libm_alias_double (__getpayload, getpayload)
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