GCCSense is a set of intelligent development tools for C and C++ using GCC as backend. Code completion and automatic syntax checking are available. Emacs and Vim are currently supported.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.