Line data    Source code

       1              : /* Definitions of floating-point conversion from compiler
       2              :    internal format to MPFR.
       3              :    Copyright (C) 2010-2026 Free Software Foundation, Inc.
       4              : 
       5              :    This file is part of GCC.
       6              : 
       7              :    GCC is free software; you can redistribute it and/or modify it under
       8              :    the terms of the GNU General Public License as published by the Free
       9              :    Software Foundation; either version 3, or (at your option) any later
      10              :    version.
      11              : 
      12              :    GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      13              :    WARRANTY; without even the implied warranty of MERCHANTABILITY or
      14              :    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      15              :    for more details.
      16              : 
      17              :    You should have received a copy of the GNU General Public License
      18              :    along with GCC; see the file COPYING3.  If not see
      19              :    <http://www.gnu.org/licenses/>.  */
      20              : 
      21              : #ifndef GCC_REALGMP_H
      22              : #define GCC_REALGMP_H
      23              : 
      24              : #include <mpfr.h>
      25              : #include <mpc.h>
      26              : 
      27              : class auto_mpfr
      28              : {
      29              : public:
      30              :   auto_mpfr () { mpfr_init (m_mpfr); }
      31      4182970 :   explicit auto_mpfr (mpfr_prec_t prec) { mpfr_init2 (m_mpfr, prec); }
      32      4182970 :   ~auto_mpfr () { mpfr_clear (m_mpfr); }
      33              : 
      34      8386982 :   operator mpfr_t& () { return m_mpfr; }
      35              :   mpfr_ptr operator-> () { return m_mpfr; }
      36              : 
      37              :   auto_mpfr (const auto_mpfr &) = delete;
      38              :   auto_mpfr &operator= (const auto_mpfr &) = delete;
      39              : 
      40              : #if GCC_VERSION < 4008 || GCC_VERSION >= 5000
      41              :   /* GCC 4.8 and 4.9 don't support this, only fixed in PR62101 for 5.0.  */
      42              :   friend void mpfr_clear (auto_mpfr&) = delete;
      43              :   friend void mpfr_init (auto_mpfr&) = delete;
      44              :   friend void mpfr_init2 (auto_mpfr&, mpfr_prec_t) = delete;
      45              : #endif
      46              : 
      47              : private:
      48              :   mpfr_t m_mpfr;
      49              : };
      50              : 
      51              : /* Convert between MPFR and REAL_VALUE_TYPE.  The caller is
      52              :    responsible for initializing and clearing the MPFR parameter.  */
      53              : 
      54              : extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr, tree, mpfr_rnd_t);
      55              : extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr,
      56              :                             const real_format *, mpfr_rnd_t);
      57              : extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *, mpfr_rnd_t);
      58              : 
      59              : #endif /* ! GCC_REALGMP_H */