Clang-Format Is Taking Good Shape For LLVM 3.4
Written by Michael Larabel in Compiler on 15 September 2013 at 09:55 PM EDT. 1 Comment
Clang-Format is taking shape in LLVM 3.4 to be a competitive answer for automatically transforming and polishing C, C++, and Objective-C code-bases. Clang-Format is part of Clang Tools and can be used for automatic styling of code with easy integration for common programming applications.

One of the big selling points of LLVM/Clang over GCC is the more modular design and clean architecture for adapting LLVM to new use-cases. In the past on Phoronix we have covered how projects like CLDOC can automatically leverage Clang to auto-document C/C++ code-bases, OCLint as a Clang-based static analysis tool, and using Clang for code comments and documentation.

Coming into good shape for LLVM 3.4 is clang-format as a standalone tool built atop LLVM's LibFormat library for code formatting. Clang-Format can automatically parse C, C++, and Objective-C code-bases and to format the code against a given style. New style files can be shipped by a given project that outline how the source-code should be formatted with regards to spacing, indentation, etc. Style files shipped for projects in LLVM's Clang Tools already include for LLVM, Google, Chromium, Mozilla, and WebKit.

Clang-Format can be run from the command-line or there's also support for integration with Vim, Emacs, BBEdit, and Git-based patch re-formatting.

For those interested in learning more about Clang Format, see the LLVM documentation and for Clang Tools.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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