59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/* Definitions of floating-point conversion from compiler
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internal format to MPFR.
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Copyright (C) 2010-2024 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_REALGMP_H
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#define GCC_REALGMP_H
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#include <mpfr.h>
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#include <mpc.h>
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class auto_mpfr
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{
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public:
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auto_mpfr () { mpfr_init (m_mpfr); }
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explicit auto_mpfr (mpfr_prec_t prec) { mpfr_init2 (m_mpfr, prec); }
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~auto_mpfr () { mpfr_clear (m_mpfr); }
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operator mpfr_t& () { return m_mpfr; }
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mpfr_ptr operator-> () { return m_mpfr; }
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auto_mpfr (const auto_mpfr &) = delete;
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auto_mpfr &operator= (const auto_mpfr &) = delete;
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#if GCC_VERSION < 4008 || GCC_VERSION >= 5000
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/* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */
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friend void mpfr_clear (auto_mpfr&) = delete;
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friend void mpfr_init (auto_mpfr&) = delete;
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friend void mpfr_init2 (auto_mpfr&, mpfr_prec_t) = delete;
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#endif
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private:
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mpfr_t m_mpfr;
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};
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/* Convert between MPFR and REAL_VALUE_TYPE. The caller is
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responsible for initializing and clearing the MPFR parameter. */
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extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mpfr_rnd_t);
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extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr,
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const real_format *, mpfr_rnd_t);
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extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mpfr_rnd_t);
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#endif /* ! GCC_REALGMP_H */
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