1/* Header used to override things detected by the mk-kinds-h.sh script. 2 Copyright (C) 2010-2020 Free Software Foundation, Inc. 3 4This file is part of the GNU Fortran runtime library (libgfortran). 5 6Libgfortran is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 3, or (at your option) 9any later version. 10 11Libgfortran is distributed in the hope that it will be useful, 12but WITHOUT ANY WARRANTY; without even the implied warranty of 13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14GNU General Public License for more details. 15 16Under Section 7 of GPL version 3, you are granted additional 17permissions described in the GCC Runtime Library Exception, version 183.1, as published by the Free Software Foundation. 19 20You should have received a copy of the GNU General Public License and 21a copy of the GCC Runtime Library Exception along with this program; 22see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23<http://www.gnu.org/licenses/>. */ 24 25 26/* What are the C types corresponding to the real(kind=10) and 27 real(kind=16) types? We currently rely on the following assumptions: 28 -- if real(kind=10) exists, i.e. if HAVE_GFC_REAL_10 is defined, 29 then it is necessarily the "long double" type 30 -- if real(kind=16) exists, then: 31 * if HAVE_GFC_REAL_10, real(kind=16) is "__float128" 32 * otherwise, real(kind=16) is "long double" 33 To allow to change this in the future, we create the 34 GFC_REAL_16_IS_FLOAT128 macro that is used throughout libgfortran. */ 35 36#if defined(HAVE_GFC_REAL_16) 37# if defined(HAVE_GFC_REAL_10) 38# define GFC_REAL_16_IS_FLOAT128 39# if !defined(HAVE_FLOAT128) 40# error "Where has __float128 gone?" 41# endif 42# else 43# define GFC_REAL_16_IS_LONG_DOUBLE 44# endif 45#endif 46 47