While creating CDT project project, you need to select its type.
There can be the following types:
By default, this dialog dispays only the project types that are buildable on the system on which Eclipse is running. You can view all installed project types by unchecking the Show Project Types and toolchains only if they are supported on the platform box.
Some project types (Executable and Makefile, in our case) can contain one or more templates (marked by disk). If you select template belonging to some project type, project of such type (executable, in our case) will be created, and additional template-specific source code will be generated.
CDT Projects
Project file views
Working with C/C++ project files