Semantic C code indexing and query tool

[Baruch Siach]

Hi linux-il,

I'm looking for a tool that can do semantic search is a body of C code.  
Example query: "give me all references to field y in struct x defined in file 
z.h". I would prefer an open source, command line driven tool. C++ support is 
an advantage. Does such a tool exist?

baruch

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