1 /* Copyright (C) 2011-2021 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library. If not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _FENV_H 19 # error "Never use <bits/fenv.h> directly; include <fenv.h> instead." 20 #endif 21 22 /* MicroBlaze supports only round-to-nearest. The software 23 floating-point support also acts this way. */ 24 enum 25 { 26 __FE_UNDEFINED = 0, 27 28 FE_TONEAREST = 29 #define FE_TONEAREST 0x1 30 FE_TONEAREST, 31 }; 32 33 #define FE_ALL_EXCEPT 0 34 35 /* Type representing exception flags (if there were any). */ 36 typedef unsigned int fexcept_t; 37 38 /* Type representing floating-point environment. */ 39 typedef unsigned int fenv_t; 40 41 /* If the default argument is used we use this value. */ 42 #define FE_DFL_ENV ((const fenv_t *) -1l) 43 44 #if __GLIBC_USE (IEC_60559_BFP_EXT_C2X) 45 /* Type representing floating-point control modes. */ 46 typedef unsigned int femode_t; 47 48 /* Default floating-point control modes. */ 49 # define FE_DFL_MODE ((const femode_t *) -1L) 50 #endif 51