47 lines
1.8 KiB
C
47 lines
1.8 KiB
C
/* Header used to override things detected by the mk-kinds-h.sh script.
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Copyright (C) 2010-2020 Free Software Foundation, Inc.
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This file is part of the GNU Fortran runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* What are the C types corresponding to the real(kind=10) and
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real(kind=16) types? We currently rely on the following assumptions:
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-- if real(kind=10) exists, i.e. if HAVE_GFC_REAL_10 is defined,
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then it is necessarily the "long double" type
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-- if real(kind=16) exists, then:
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* if HAVE_GFC_REAL_10, real(kind=16) is "__float128"
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* otherwise, real(kind=16) is "long double"
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To allow to change this in the future, we create the
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GFC_REAL_16_IS_FLOAT128 macro that is used throughout libgfortran. */
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#if defined(HAVE_GFC_REAL_16)
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# if defined(HAVE_GFC_REAL_10)
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# define GFC_REAL_16_IS_FLOAT128
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# if !defined(HAVE_FLOAT128)
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# error "Where has __float128 gone?"
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# endif
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# else
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# define GFC_REAL_16_IS_LONG_DOUBLE
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# endif
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#endif
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