ccls C/C++/ObjC Language Server

Alex Murray (alexmurray) Publisher Star developer Star developer

Install latest/stable of ccls C/C++/ObjC Language Server

Ubuntu 16.04 or later?

Make sure snap support is enabled in your Desktop store.

Install using the command line

sudo snap install ccls --classic

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Channel Version Published

C/C++/ObjC Language Server

ccls is a C/C++/Objective-C language server.


  • Code completion (with both signature help and snippets)
  • Definition/references, and other cross references
  • Cross reference extensions: $ccls/call $ccls/inheritance $ccls/member $ccls/vars ...
  • Formatting
  • Hierarchies: call (caller/callee) hierarchy, inheritance (base/derived) hierarchy, member hierarchy
  • Symbol rename
  • Document symbols and approximate search of workspace symbol
  • Hover information
  • Diagnostics and code actions (clang FixIts)
  • Semantic highlighting and preprocessor skipped regions
  • Semantic navigation: $ccls/navigate

It has a global view of the code base and support a lot of cross reference features, see wiki/FAQ. It starts indexing the whole project (including subprojects if exist) parallelly when you open the first file, while the main thread can serve requests before the indexing is complete. Saving files will incrementally update the index.

Details for ccls C/C++/ObjC Language Server

  • Apache-2.0

Last updated
  • 6 May 2024 - latest/stable
  • 6 May 2024 - latest/stable



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