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      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
     69