Update CMakeLists.txt

Author: ZhouXY-PKU

CMakeLists.txt

@@ -174,7 +174,9 @@ set(ABACUS_BIN_PATH ${CMAKE_CURRENT_BINARY_DIR}/${ABACUS_BIN_NAME})
 include_directories(${ABACUS_SOURCE_DIR})
 include_directories(${ABACUS_SOURCE_DIR}/source_base/module_container)
 
-set(CMAKE_CXX_STANDARD 11)
+if(NOT DEFINED CMAKE_CXX_STANDARD)
+  set(CMAKE_CXX_STANDARD 11)
+endif()
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_executable(${ABACUS_BIN_NAME} source/source_main/main.cpp)
@@ -330,6 +332,10 @@ endif()
 if(USE_CUDA)
   cmake_minimum_required(VERSION 3.18) # required by `CUDA_ARCHITECTURES` below
   set_if_higher(CMAKE_CXX_STANDARD 14)
+  if(CUDA_VERSION VERSION_GREATER_EQUAL "13.0")
+    message(STATUS "CUDA ${CUDA_VERSION} detected. Setting CMAKE_CUDA_STANDARD to 17.")
+    set_if_higher(CMAKE_CXX_STANDARD 17)
+  endif()
   set(CMAKE_CXX_EXTENSIONS ON)
   set(CMAKE_CUDA_STANDARD ${CMAKE_CXX_STANDARD})
   set(CMAKE_CUDA_STANDARD_REQUIRED ON)