initial matador ng commit

include/matador/utils/errors.hpp

@@ -0,0 +1,29 @@
+#ifndef ERRORS_HPP
+#define ERRORS_HPP
+
+#include "matador/utils/export.hpp"
+
+#include <system_error>
+
+namespace matador::utils {
+
+enum class utils_error {
+  InvalidVersionString,
+};
+
+class utils_category_impl final : public std::error_category
+{
+public:
+  [[nodiscard]] const char* name() const noexcept override;
+  [[nodiscard]] std::string message(int ev) const override;
+};
+
+const std::error_category& utils_category();
+std::error_code make_error_code(utils_error e);
+std::error_condition make_error_condition(utils_error e);
+}
+
+template <>
+struct std::is_error_code_enum<matador::utils::utils_error> : true_type {};
+
+#endif //ERRORS_HPP