/* Copyright (C) 2012-2016 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 . */ #ifndef _FENV_H # error "Never use directly; include instead." #endif /* The Altera specified Nios II hardware FPU does not support exceptions, nor does the software floating-point support. */ #define FE_ALL_EXCEPT 0 /* Nios II supports only round-to-nearest. The software floating-point support also acts this way. */ enum { __FE_UNDEFINED = 0, FE_TONEAREST = #define FE_TONEAREST 1 FE_TONEAREST, }; /* Type representing exception flags. */ typedef unsigned int fexcept_t; /* Type representing floating-point environment. */ typedef unsigned int fenv_t; /* If the default argument is used we use this value. */ #define FE_DFL_ENV ((const fenv_t *) -1) #if __GLIBC_USE (IEC_60559_BFP_EXT) /* Type representing floating-point control modes. */ typedef unsigned int femode_t; /* Default floating-point control modes. */ # define FE_DFL_MODE ((const femode_t *) -1L) #endif