1  /* Utilities for MPFR developers, not exported.
       2  
       3  Copyright 1999-2023 Free Software Foundation, Inc.
       4  Contributed by the AriC and Caramba projects, INRIA.
       5  
       6  This file is part of the GNU MPFR Library.
       7  
       8  The GNU MPFR Library is free software; you can redistribute it and/or modify
       9  it under the terms of the GNU Lesser General Public License as published by
      10  the Free Software Foundation; either version 3 of the License, or (at your
      11  option) any later version.
      12  
      13  The GNU MPFR Library is distributed in the hope that it will be useful, but
      14  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      15  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
      16  License for more details.
      17  
      18  You should have received a copy of the GNU Lesser General Public License
      19  along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
      20  https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
      21  51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
      22  
      23  #ifndef __MPFR_CVERS_H__
      24  #define __MPFR_CVERS_H__
      25  
      26  /* Macros to detect STDC, ICC, GCC, and GLIBC versions */
      27  #if defined(__STDC_VERSION__)
      28  # define __MPFR_STDC(version) (__STDC_VERSION__ >= (version))
      29  #else
      30  # define __MPFR_STDC(version) 0
      31  #endif
      32  
      33  #if defined(_WIN32)
      34  /* Under MS Windows (e.g. with VS2008 or VS2010), Intel's compiler doesn't
      35     support/enable extensions like the ones seen under GNU/Linux.
      36     https://sympa.inria.fr/sympa/arc/mpfr/2011-02/msg00032.html */
      37  # define __MPFR_ICC(a,b,c) 0
      38  #elif defined(__ICC)
      39  # define __MPFR_ICC(a,b,c) (__ICC >= (a)*100+(b)*10+(c))
      40  #elif defined(__INTEL_COMPILER)
      41  # define __MPFR_ICC(a,b,c) (__INTEL_COMPILER >= (a)*100+(b)*10+(c))
      42  #else
      43  # define __MPFR_ICC(a,b,c) 0
      44  #endif
      45  
      46  #define __MPFR_MAJMIN(a,i) (((a) << 8) | (i))
      47  
      48  /* Instead of __MPFR_MAJMIN below, we could use code like
      49       (__MAJ__ + (__MIN__ >= (i)) > (a))
      50     as in the patch at
      51     https://sympa.inria.fr/sympa/arc/mpfr/2022-12/msg00007.html
      52  */
      53  
      54  #if defined(__GNUC__) && defined(__GNUC_MINOR__) && ! __MPFR_ICC(0,0,0)
      55  # define __MPFR_GNUC(a,i) \
      56   (__MPFR_MAJMIN(__GNUC__,__GNUC_MINOR__) >= __MPFR_MAJMIN(a,i))
      57  #else
      58  # define __MPFR_GNUC(a,i) 0
      59  #endif
      60  
      61  #if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
      62  # define __MPFR_GLIBC(a,i) \
      63   (__MPFR_MAJMIN(__GLIBC__,__GLIBC_MINOR__) >= __MPFR_MAJMIN(a,i))
      64  #else
      65  # define __MPFR_GLIBC(a,i) 0
      66  #endif
      67  
      68  #endif