dr-quine

Status

• Status: on going
• Result: -
• Observations: (null)

Info

42 school project.

This project is about discovering the recursion theorem of Kleene! The challenge is to write a program whose output is its own source code. The rules are simple:

• Self-replication: The program’s output must be an exact copy of its source code.
• No peeking: You can’t just open the source file and print its contents. That’s cheating.
• No input: The program must be completely self-contained. It can’t ask for any input to do its job.

Included quines:

• Collean: prints its own source code.
• Grace: outputs its source code to a child file.
• Sully: outputs its source code to X files, where X is defined in the original source code.

Build

Dependencies:

• CMake (>= 3.18).
• Ninja.

1. Configure with Ninja:

cmake -B build -G "Ninja Multi-Config" .

Alternatively, use a Visual Studio generator to create a solution:

# 64-bit
cmake -B build -G "Visual Studio 17 2022" -A x64 .
# 32-bit
cmake -B build -G "Visual Studio 17 2022" -A Win32 .

2. Build:

cmake --build build --config Release

The Ninja Multi-Config generator lets you use other build types (CMAKE_BUILD_TYPE) like "Debug" or "RelWithDebInfo", apart from "Release". Asan builds are also supported, they enable the address sanitizer.

The resulting binaries are in build/<build-type>/.

Windows notes

To build and use CMake you can open a developer powershell, or load the Visual Studio command-line tools by running vcvarsall.bat (locations vary) in your shell:

# 32-bit
path\to\vcvarsall\vcvarsall.bat x86
# 64-bit
path\to\vcvarsall\vcvarsall.bat amd64