| 1 | /* Definitions of floating-point conversion from compiler |
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| 2 | internal format to MPFR. |
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| 3 | Copyright (C) 2010-2023 Free Software Foundation, Inc. |
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| 4 | |
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| 5 | This file is part of GCC. |
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| 6 | |
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| 7 | GCC is free software; you can redistribute it and/or modify it under |
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| 8 | the terms of the GNU General Public License as published by the Free |
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| 9 | Software Foundation; either version 3, or (at your option) any later |
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| 10 | version. |
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| 11 | |
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| 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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| 15 | for more details. |
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| 16 | |
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| 17 | You should have received a copy of the GNU General Public License |
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| 18 | along with GCC; see the file COPYING3. If not see |
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| 19 | <http://www.gnu.org/licenses/>. */ |
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| 20 | |
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| 21 | #ifndef GCC_REALGMP_H |
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| 22 | #define GCC_REALGMP_H |
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| 23 | |
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| 24 | #include <mpfr.h> |
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| 25 | #include <mpc.h> |
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| 26 | |
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| 27 | class auto_mpfr |
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| 28 | { |
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| 29 | public: |
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| 30 | auto_mpfr () { mpfr_init (m_mpfr); } |
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| 31 | explicit auto_mpfr (mpfr_prec_t prec) { mpfr_init2 (m_mpfr, prec); } |
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| 32 | ~auto_mpfr () { mpfr_clear (m_mpfr); } |
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| 33 | |
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| 34 | operator mpfr_t& () { return m_mpfr; } |
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| 35 | mpfr_ptr operator-> () { return m_mpfr; } |
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| 36 | |
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| 37 | auto_mpfr (const auto_mpfr &) = delete; |
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| 38 | auto_mpfr &operator= (const auto_mpfr &) = delete; |
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| 39 | |
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| 40 | #if GCC_VERSION < 4008 || GCC_VERSION >= 5000 |
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| 41 | /* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0. */ |
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| 42 | friend void mpfr_clear (auto_mpfr&) = delete; |
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| 43 | friend void mpfr_init (auto_mpfr&) = delete; |
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| 44 | friend void mpfr_init2 (auto_mpfr&, mpfr_prec_t) = delete; |
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| 45 | #endif |
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| 46 | |
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| 47 | private: |
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| 48 | mpfr_t m_mpfr; |
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| 49 | }; |
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| 50 | |
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| 51 | /* Convert between MPFR and REAL_VALUE_TYPE. The caller is |
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| 52 | responsible for initializing and clearing the MPFR parameter. */ |
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| 53 | |
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| 54 | extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mpfr_rnd_t); |
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| 55 | extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, |
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| 56 | const real_format *, mpfr_rnd_t); |
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| 57 | extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mpfr_rnd_t); |
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| 58 | |
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| 59 | #endif /* ! GCC_REALGMP_H */ |
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| 60 | |
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