src/zyn-version.h.in

   1 /*
   2   ZynAddSubFX - a software synthesizer
   3
   4   version.h - declaration of version_type class
   5               contains the current zynaddsubfx version
   6   Copyright (C) 2016 Johannes Lorenz
   7   Author: Johannes Lorenz
   8
   9   This program is free software; you can redistribute it and/or
  10   modify it under the terms of the GNU General Public License
  11   as published by the Free Software Foundation; either version 2
  12   of the License, or (at your option) any later version.
  13 */
  14
  15 #ifndef VERSION_H
  16 #define VERSION_H
  17
  18 #include <iosfwd>
  19
  20 //! class containing a zynaddsubfx version
  21 class version_type
  22 {
  23     char version[3];
  24
  25     // strcmp-like comparison against another version_type
  26     constexpr int v_strcmp(const version_type& v2, int i) const
  27     {
  28         return (i == sizeof(version))
  29             ? 0
  30             : ((version[i] == v2.version[i])
  31                 ? v_strcmp(v2, i+1)
  32                 : (version[i] - v2.version[i]));
  33     }
  34
  35 public:
  36     constexpr version_type(char maj, char min, char rev) :
  37         version{maj, min, rev}
  38     {
  39     }
  40
  41     //! constructs the current zynaddsubfx version
  42     constexpr version_type() :
  43         version_type(${VERSION_MAJOR},
  44                      ${VERSION_MINOR},
  45                      ${VERSION_REVISION})
  46     {
  47     }
  48
  49     void set_major(int maj) { version[0] = maj; }
  50     void set_minor(int min) { version[1] = min; }
  51     void set_revision(int rev) { version[2] = rev; }
  52
  53     int get_major() const { return version[0]; }
  54     int get_minor() const { return version[1]; }
  55     int get_revision() const { return version[2]; }
  56
  57     constexpr bool operator<(const version_type& other) const
  58     {
  59         return v_strcmp(other, 0) < 0;
  60     }
  61
  62     //! prints version as <major>.<minor>.<revision>
  63     friend std::ostream& operator<< (std::ostream& os,
  64                                      const version_type& v);
  65 };
  66
  67 //! the current zynaddsubfx version
  68 constexpr version_type version;
  69
  70 #endif
  71