--- a/CMakeLists.txt	Wed Jan 27 12:41:50 2021 +0200
+++ b/CMakeLists.txt	Wed Jan 27 19:48:41 2021 +0200
@@ -2,6 +2,9 @@
 cmake_policy (SET CMP0003 NEW)
 project (ZFC9000)
 string (TOLOWER ${CMAKE_PROJECT_NAME} TARGET_NAME)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
 
 add_library (huffman STATIC
 	huffman/bitreader.cpp
@@ -37,7 +40,6 @@
 	sources/network/ipaddress.h
 	sources/network/rconsession.h
 	sources/network/udpsocket.h
-	sources/range.h
 	sources/version.h
 )