RESTINIO_VERSION and related macros added.

dev/restinio/CMakeLists.txt

@@ -95,6 +95,7 @@ SET(RESTINIO_HEADERS_ALL
 	uri_helpers.hpp
 	value_or.hpp
 	variant.hpp
+	version.hpp
 	tls_fwd.hpp
 	impl/acceptor.hpp
 	impl/connection_base.hpp

dev/restinio/all.hpp

@@ -8,6 +8,8 @@
 
 #pragma once
 
+#include <restinio/version.hpp>
+
 #include <restinio/asio_include.hpp>
 #include <restinio/settings.hpp>
 #include <restinio/http_headers.hpp>

dev/restinio/version.hpp

@@ -0,0 +1,64 @@
+/*
+ * RESTinio
+ */
+
+/*!
+ * @file
+ * @brief Definition of RESTINIO_VERSION macro
+ *
+ * @since v.0.6.0
+ */
+
+#pragma once
+
+// The current version is 0.6.0
+//
+/*!
+ * The major part of version number.
+ *
+ * If RESTinio's version is 0.6.0 then RESTINIO_VERSION_MAJOR==0.
+ * If RESTinio's version is 1.2.4 then RESTINIO_VERSION_MAJOR==1.
+ */
+#define RESTINIO_VERSION_MAJOR 0ull
+
+/*!
+ * The minon part of version number.
+ *
+ * If RESTinio's version is 0.6.0 then RESTINIO_VERSION_MINOR==6.
+ */
+#define RESTINIO_VERSION_MINOR 6ull
+
+/*!
+ * The patch part of version number.
+ *
+ * If RESTinio's version is 0.6.23 then RESTINIO_VERSION_PATCH==23.
+ */
+#define RESTINIO_VERSION_PATCH 0ull
+
+/*!
+ * Helper macro for make single number representation of RESTinio's version.
+ *
+ * It can be used that way:
+ * \code
+ * // Some feature is available only from 1.2.4
+ * #if RESTINIO_VERSION >= RESTINIO_VERSION_MAKE(1, 2, 4)
+ * 	... // Some 1.2.4 (or above) specific code.
+ * #endif
+ * \endcode
+ */
+#define RESTINIO_VERSION_MAKE(major, minor, patch) \
+	(((major) * 1000000ull) + \
+	((minor) * 1000ull) + \
+	(patch))
+
+/*!
+ * A single number representation of RESTinio version.
+ *
+ * For example it can be 6003ull for RESTinio-0.6.3.
+ * Or 1004023ull for RESTinio-1.4.23.
+ */
+#define RESTINIO_VERSION RESTINIO_VERSION_MAKE( \
+	RESTINIO_VERSION_MAJOR,\
+	RESTINIO_VERSION_MINOR,\
+	RESTINIO_VERSION_PATCH)
+