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/* Definitions of floating-point conversion from compiler
internal format to MPFR.
Copyright (C) 2010-2024 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_REALGMP_H
#define GCC_REALGMP_H
#include <mpfr.h>
#include <mpc.h>
class auto_mpfr
{
public:
auto_mpfr () { mpfr_init (m_mpfr); }
explicit auto_mpfr (mpfr_prec_t prec) { mpfr_init2 (m_mpfr, prec); }
~auto_mpfr () { mpfr_clear (m_mpfr); }
operator mpfr_t& () { return m_mpfr; }
mpfr_ptr operator-> () { return m_mpfr; }
auto_mpfr (const auto_mpfr &) = delete;
auto_mpfr &operator= (const auto_mpfr &) = delete;
#if GCC_VERSION < 4008 || GCC_VERSION >= 5000
/* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */
friend void mpfr_clear (auto_mpfr&) = delete;
friend void mpfr_init (auto_mpfr&) = delete;
friend void mpfr_init2 (auto_mpfr&, mpfr_prec_t) = delete;
#endif
private:
mpfr_t m_mpfr;
};
/* Convert between MPFR and REAL_VALUE_TYPE. The caller is
responsible for initializing and clearing the MPFR parameter. */
extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mpfr_rnd_t);
extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr,
const real_format *, mpfr_rnd_t);
extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mpfr_rnd_t);
#endif /* ! GCC_REALGMP_H */
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