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A BQN implementation in C

CBQN-specific documentationsource code overview

Running

  1. make
    • make CC=gcc if you don't have clang installed
    • make PIE="" on ARM CPUs (incl. Android & M1)
    • make FFI=0 if your system doesn't have libffi (i.e. an error about missing <ffi.h> appears)
    • gmake on BSDs
    • For Windows, CBQN works in WSL, and WinBQN provides Cygwin/Msys2 builds.
    • make clean if anything goes bad and you want a clean slate
    • make [...]; sudo make install to install into /usr/local/bin/bqn; sudo make uninstall to uninstall
    • If you want to use custom build types but your system doesn't have shasum/sha256sum, add force_build_dir=some_identifier. That identifier will be used to decide on the directory for incremental build object files.
  2. ./BQN somefile.bqn to execute a file, or rlwrap ./BQN for a REPL

Configuration options

  • some-other-bqn-implementation ./genRuntime path/to/mlochbaum/BQN can be used to avoid pulling precompiled bytecode with git from remotes/origin/bytecode.
    This creates the dummy file src/gen/customRuntime, which will disable automated bytecode retrieval, leading to the bytecode going out-of-sync whenever it needs updating.
    make clean-runtime (which is included in make clean) can be used to reset this to the default state.
  • Different build types:
    • make o3 - -O3, the default build
    • make o3n - -O3 -march=native
    • make o3g - -g -O3
    • make debug - unoptimized debug build
    • make debug1 - debug build without parallel compilation. Useful if everything errors, and you don't want error messages of multiple threads to be written at the same time.
    • make heapverify - verify that refcounting is done correctly
    • make o3n-singeli - a Singeli build, currently only for x86-64 CPUs supporting AVX2
    • make shared-o3 - produce the shared library libcbqn.so
    • make c - a build with no flags, for manual customizing
    • make shared-c - like make c but for a shared library
    • make single-(o3|o3g|debug|c) - compile everything as a single translation unit. Slower for optimized builds, but may allow some more optimizations
  • For any of the above (especially make c), you can add extra flags with f=... (and linker flags with lf=...), e.g.
    make f='-O3 -DSOME_MACRO=whatever -some_other_cc_flag' c
    Macros that you may want to define are listed in src/h.h.
  • A specific build type can be cleaned by adding clean=1 to the make argument list. Similarly, adding builddir=1 will give you the build directory.
  • Tests can be run with ./BQN path/to/mlochbaum/BQN/test/this.bqn (add -noerr if using make heapverify).
  • Some implementation docs

License

Any file without an explicit copyright message is copyright (c) 2021 dzaima, GNU GPLv3 - see LICENSE

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