1 /* Floating point environment, RISC-V version.
2 Copyright (C) 1998-2018 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library. If not, see
17 <http://www.gnu.org/licenses/>. */
20 # error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
26 #define FE_INEXACT (0x01)
29 #define FE_UNDERFLOW (0x02)
32 #define FE_OVERFLOW (0x04)
35 #define FE_DIVBYZERO (0x08)
38 #define FE_INVALID (0x10)
42 #define FE_ALL_EXCEPT \
43 (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
48 #define FE_TONEAREST (0x0)
51 #define FE_TOWARDZERO (0x1)
54 #define FE_DOWNWARD (0x2)
57 #define FE_UPWARD (0x3)
62 typedef unsigned int fexcept_t
;
63 typedef unsigned int fenv_t
;
65 /* If the default argument is used we use this value. */
66 #define FE_DFL_ENV ((__const fenv_t *) -1)
68 #if __GLIBC_USE (IEC_60559_BFP_EXT)
69 /* Type representing floating-point control modes. */
70 typedef unsigned int femode_t
;
72 /* Default floating-point control modes. */
73 # define FE_DFL_MODE ((const femode_t *) -1L)