View outlines of source and binary files

The Project Explorer view shows you an outline of the C/C++ source and header files in a project:

You can also use the Outline view to see the structure of the files in your projects.

The Project view shows you the outlines of binary files as well. You can examine the structure of executables or object files to see the elements that you defined or used in the file, as well as implicitly used elements, such as malloc, _init, and errno: