file(GLOB CPPFILES "${CMAKE_CURRENT_SOURCE_DIR}/*.cpp")
foreach(item ${CPPFILES})
    get_filename_component(itemname ${item} NAME_WE)
    add_executable(${itemname} ${item})
    message(STATUS "add_executable(${itemname} ${item})")
    # target_link_libraries(${itemname} Eigen3::Eigen)
endforeach()