mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* Return the least floating-point number greater than X.
|
|
Copyright (C) 2016-2023 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <float.h>
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
#include <libm-alias-float.h>
|
|
|
|
/* Return the least floating-point number greater than X. */
|
|
float
|
|
__nextupf (float x)
|
|
{
|
|
int32_t hx, ix;
|
|
|
|
GET_FLOAT_WORD (hx, x);
|
|
ix = hx & 0x7fffffff;
|
|
if (ix == 0)
|
|
return FLT_TRUE_MIN;
|
|
if (ix > 0x7f800000) /* x is nan. */
|
|
return x + x;
|
|
if (hx >= 0)
|
|
{ /* x > 0. */
|
|
if (isinf (x))
|
|
return x;
|
|
hx += 1;
|
|
}
|
|
else
|
|
hx -= 1;
|
|
SET_FLOAT_WORD (x, hx);
|
|
return x;
|
|
}
|
|
|
|
libm_alias_float (__nextup, nextup)
|