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 ZYN_VERSION_H
  16 #define ZYN_VERSION_H
  17
  18 #include <iosfwd>
  19
  20 namespace zyn {
  21
  22 //! class containing a zynaddsubfx version
  23 class version_type
  24 {
  25     char version[3];
  26
  27     // strcmp-like comparison against another version_type
  28     constexpr int v_strcmp(const version_type& v2, int i) const
  29     {
  30         return (i == sizeof(version))
  31             ? 0
  32             : ((version[i] == v2.version[i])
  33                 ? v_strcmp(v2, i+1)
  34                 : (version[i] - v2.version[i]));
  35     }
  36
  37 public:
  38     constexpr version_type(char maj, char min, char rev) :
  39         version{maj, min, rev}
  40     {
  41     }
  42
  43     //! constructs the current zynaddsubfx version
  44     constexpr version_type() :
  45         version_type(${VERSION_MAJOR},
  46                      ${VERSION_MINOR},
  47                      ${VERSION_REVISION})
  48     {
  49     }
  50
  51     void set_major(int maj) { version[0] = maj; }
  52     void set_minor(int min) { version[1] = min; }
  53     void set_revision(int rev) { version[2] = rev; }
  54
  55     int get_major() const { return version[0]; }
  56     int get_minor() const { return version[1]; }
  57     int get_revision() const { return version[2]; }
  58
  59     constexpr bool operator<(const version_type& other) const
  60     {
  61         return v_strcmp(other, 0) < 0;
  62     }
  63
  64     //! prints version as <major>.<minor>.<revision>
  65     friend std::ostream& operator<< (std::ostream& os,
  66                                      const version_type& v);
  67 };
  68
  69 //! the current zynaddsubfx version
  70 constexpr version_type version;
  71
  72 }
  73
  74 #endif
  75