File list (Check if you may need any files):
demo_01
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_01.pro
.......\demo_01.pro.user
.......\main.c
demo_02
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_02.pro
.......\demo_02.pro.user
.......\main.c
.......\sayhello.c
.......\sayhello.h
demo_03
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_03.pro
.......\demo_03.pro.user
.......\main.c
.......\sayhello.c
.......\sayhello.h
.......\sayworld.c
.......\sayworld.h
demo_04
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_04.pro
.......\demo_04.pro.user
.......\main.c
demo_05
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_05.pro
.......\demo_05.pro.user
.......\main.c
demo_06
.......\.cproject
.......\.project
.......\build
.......\circle.c
.......\circle.h
.......\CMakeLists.txt
.......\demo_06.pro
.......\demo_06.pro.user
.......\main.c
.......\rectangle.c
.......\rectangle.h
.......\shape.c
.......\shape.h
demo_07
.......\.cproject
.......\.project
.......\build
.......\CMakeLists.txt
.......\demo_07.pro
.......\demo_07.pro.user
.......\main.c
.......\vector.c
.......\vector.h
oopc.h