change CMakeLists.txt into c++ 17 standard

Author: YuleZhang936

CMakeLists.txt

@@ -148,7 +148,7 @@ set(ABACUS_BIN_PATH ${CMAKE_CURRENT_BINARY_DIR}/${ABACUS_BIN_NAME})
 include_directories(${ABACUS_SOURCE_DIR})
 include_directories(${ABACUS_SOURCE_DIR}/module_base/module_container)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_executable(${ABACUS_BIN_NAME} source/main.cpp)

source/module_hamilt_general/module_xc/NCLibxc/benchmark_tests.cpp

@@ -178,7 +178,7 @@ void NCLibxc::gga_collinear_test()
         int xc_id = 106; // Example XC functional ID
 
         // Call gga_mc
-        auto [E_GGA_MC, V_GGA_MC] = NCLibxc::gga_mc(
+        auto[E_GGA_MC, V_GGA_MC] = NCLibxc::gga_mc(
     xc_id, n, mx, my, mz,
     gradx_n, grady_n, gradz_n,
     gradx_mx, grady_mx, gradz_mx,