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# ccls
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ccls is a fork of cquery (originally written by Jacob Dufault),
a C/C++/Objective-C language server.
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* code completion (with both signature help and snippets)
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* [definition ](src/messages/text_document_definition.cc )/[references](src/messages/text_document_references.cc), and other cross references
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* [call (caller/callee) hierarchy ](src/messages/ccls_call_hierarchy.cc ), [inheritance (base/derived) hierarchy ](src/messages/ccls_inheritance_hierarchy.cc ), [member hierarchy ](src/messages/ccls_member_hierarchy.cc )
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* [symbol rename ](src/messages/text_document_rename.cc )
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* [document symbols ](src/messages/text_document_document_symbol.cc ) and approximate search of [workspace symbol ](src/messages/workspace_symbol.cc )
* [hover information ](src/messages/text_document_hover.cc )
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* diagnostics
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* code actions (clang FixIts)
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* preprocessor skipped regions
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* semantic highlighting, including support for [rainbow semantic highlighting ](https://medium.com/@evnbr/coding-in-color-3a6db2743a1e )
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It makes use of C++17 features, has less third-party dependencies and slimmed-down code base. Cross reference features are strenghened, (see [wiki/FAQ]). It currently uses libclang to index C++ code but will switch to Clang C++ API. Refactoring and formatting are non-goals as they can be provided by clang-format, clang-include-fixer and other Clang based tools.
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# >>> [Getting started](../../wiki/Getting-started) (CLICK HERE) <<<
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* [Build ](../../wiki/Build )
* [Emacs ](../../wiki/Emacs )
* [FAQ ](../../wiki/FAQ )
