A BQN implementation in C

CBQN-specific documentation • source code overview

Running

1. make
   • make CC=gcc if you don't have clang installed
   • make PIE="" on ARM CPUs (incl. Android & M1)
   • gmake on BSDs
   • 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 c - a build with no flags, for manual customizing
  • 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).
• Test precompiled expression: some-other-bqn-impl ./precompiled.bqn path/to/mlochbaum/BQN "$PATH" '2+2'
• Some implementation docs

License

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