https://github.com/borzunov/keks
Stash of fun code snippets
https://github.com/borzunov/keks
Last synced: 6 days ago
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Stash of fun code snippets
- Host: GitHub
- URL: https://github.com/borzunov/keks
- Owner: borzunov
- Created: 2021-02-22T23:19:52.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2021-02-22T23:26:31.000Z (over 4 years ago)
- Last Synced: 2025-04-02T20:45:13.297Z (3 months ago)
- Language: JavaScript
- Homepage:
- Size: 6.84 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
keks
====
Code snippets curious to (at least) non-expert programmers
Snippets
--------
* **C:** [Generate functions at runtime](01-c-closures/closure_x86.c)
It is not obvious how to create new functions at runtime in pure C
(e.g. implement [closures](https://en.wikipedia.org/wiki/Closure_(computer_programming)#)),
however it's possible with some assembly code.
* **Javascript:** [Arbitrary-precision floating-point arithmetic](03-js-big-float/big_float.js)
Impements [floating-point](https://en.wikipedia.org/wiki/Single-precision_floating-point_format#IEEE_754_single-precision_binary_floating-point_format:_binary32)
arithmetic for any given number of bits for exponent and fraction
(including [denormalized numbers](https://en.wikipedia.org/wiki/Denormal_number), NaNs, etc.).
Supports comparison, `+`, `-`, `*`, `/`, `sqrt`, `sin`, `cos`.
Calculation methods are not optimal (this is a proof-of-concept).
* **Bash, Windows CMD:** [Arbitrary-precision unsigned integer arithmetic](02-shell-big-unsigned)
Implements `+`, `-`, `*`, `div`, `mod`, and `sqrt` operations for arbitrary-precision
unsigned integers in pure Bash and in pure Windows CMD script (*.bat).
* **Python:** [Add methods to built-in types](https://github.com/borzunov/dontasq#adding-methods-to-built-ins)
That's possible with either a hack with garbage collector references or Python C API.
See [forbiddenfruit](https://github.com/clarete/forbiddenfruit) and
[dontasq](https://github.com/borzunov/dontasq) for practical use.
* **C++:** [Calculate factorial at compile-time](04-cpp-factorial/factorial.cpp)
Uses [template specialization](https://en.cppreference.com/w/cpp/language/template_specialization).
Author
------
Copyright © 2014-2015 Alexander Borzunov