initial matador ng commit

include/matador/utils/version.hpp

@@ -0,0 +1,50 @@
+#ifndef MATADOR_VERSION_HPP
+#define MATADOR_VERSION_HPP
+
+#include "matador/utils/result.hpp"
+#include "matador/utils/error.hpp"
+
+#include <string>
+#include <ostream>
+
+namespace matador::utils {
+
+class version {
+public:
+  version() = default;
+  ~version() =default;
+  version(unsigned int major, unsigned int minor, unsigned int patch);
+  version(const version& x) = default;
+  version& operator=(const version& x) = default;
+  version(version&& x) noexcept = default;
+  version& operator=(version&& x) noexcept = default;
+
+  bool operator==(const version &x) const;
+  bool operator!=(const version &x) const;
+  bool operator>(const version &x) const;
+  bool operator>=(const version &x) const;
+  bool operator<(const version &x) const;
+  bool operator<=(const version &x) const;
+
+  [[nodiscard]] std::string str() const;
+  friend std::ostream& operator<<(std::ostream &out, const version &v);
+
+  static result<version, error> from_string(const std::string &version_string);
+
+  [[nodiscard]] unsigned int major() const;
+  [[nodiscard]] unsigned int minor() const;
+  [[nodiscard]] unsigned int patch() const;
+
+  void major(unsigned int m);
+  void minor(unsigned int m);
+  void patch(unsigned int p);
+
+private:
+  unsigned int major_{};
+  unsigned int minor_{};
+  unsigned int patch_{};
+};
+
+}
+
+#endif //MATADOR_VERSION_HPP