A fast preprocessor for C and C++ designed as a faster replacement for GNU cpp.
Warp is Facebook's open-source preprocessor for C and C++ programming languages designed as a faster replacement for GNU's cpp. It accelerates the preprocessing stage of compilation, particularly beneficial for large codebases where preprocessing time becomes significant. The project includes warpdrive, a companion program that handles compiler-specific macro definitions for popular compilers.
C and C++ developers working with large codebases where preprocessing performance matters, particularly those using gcc or clang compilers and seeking faster build times.
Developers choose Warp for its significantly faster preprocessing compared to GNU cpp, its compatibility with major compilers through the warpdrive utility, and its origin as a production-tested tool from Facebook's development environment.
A fast preprocessor for C and C++
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Warp is designed as a faster replacement for GNU cpp, significantly reducing preprocessing times for large codebases, as evidenced by its production use at Facebook.
The warp preprocessor works independently of specific C/C++ compiler dialects, offering flexibility, and warpdrive provides predefined macros for popular compilers like gcc and clang.
Originally developed and used at Facebook, Warp has been tested in a large-scale production environment, indicating robustness for accelerating build pipelines.
Building Warp involves a straightforward Makefile that produces both the core preprocessor and compiler-specific drivers with minimal steps, as described in the README.
The project is archived and not actively maintained, posing risks for long-term use, compatibility with newer systems, and lack of support for issues.
Warpdrive only supports specific, now outdated versions of gcc and clang (e.g., gcc 4.7.1, clang 3.4), limiting utility with modern toolchains and newer C++ standards.
Requires a D compiler installation, which may not be standard in C/C++ development environments and adds setup complexity, especially for maximum speed with gdc.
Build and testing are confirmed only on CentOS 6 with specific gcc versions, reducing confidence in cross-platform compatibility and deployment on modern systems.