midori cleoold

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thonking

thonk.

cleoold / sformat.hpp

Last active May 24, 2021 07:50

a dirty enough string.format() function for pre-c++20 for copy pasta

	// string format
	// by cos 2020. licensed under MIT
	#pragma once

	#include <string>
	#include <sstream>

	namespace detail {
	template<class CharT>
	void format_impl(std::basic_ostringstream<CharT> &oss, const CharT *s) {

cleoold / logiccircuit.cpp

Last active July 4, 2020 10:24

simple publisher-observer logic gate simulation

	#include <iostream>
	#include <vector>
	#include <string>

	// observer-based logic gate simulation
	// things are done in a naive way. one may have stack overflow
	// if events invoke each other

	// interfaces

cleoold / vector_inserter.hpp

Last active August 26, 2020 00:10

dirty convinient std::vector inserter

	#pragma once
	#include <vector>
	// inspiration: boost/assign/std/vector.hpp

	template<class VT> struct vector_inserter {
	VT &vec;
	template<class Arg> auto &operator,(Arg &&v) {
	vec.emplace_back(std::forward<Arg>(v));
	return *this;
	}

cleoold / lambda_traits.hpp

Last active April 24, 2021 14:04

detect return, param type of a C++ functor (or lambda)

	/* Lambda traits (c) cos Licensed under BSD 2-Clause */
	#pragma once
	#include <tuple>

	namespace detail {
	template<typename R, typename ...Args>
	struct lambda_traits_base_noconst {
	using result_type = R;
	using args_type = std::tuple<Args...>;
	template<size_t idx> using arg_type_at = std::tuple_element_t<idx, args_type>;

cleoold / treewithuniqptr.cpp

Created May 30, 2020 03:46

tree implementation with strict ownership

cleoold / acc.cpp

Last active April 7, 2020 08:59

C++ accumulating template arguments

	// -std=c++17 (auto parameter, inline variable)
	// x64msvc>=v19.20, x64clang>=5.0.0, x64gcc>=8.1
	#include <utility> // integer_sequence

	namespace num {
	template <typename T, T n>
	struct _pack {
	using type = _pack;
	using value_type = T;
	static constexpr T value = n;

cleoold / test.cpp

Last active October 12, 2023 08:51

quicksort in C++ template metaprogramming

	// -std=c++11
	// licensed under MIT
	// 2020 cos https://opensource.org/licenses/MIT
	#include <iostream>

	namespace li {
	template <int n> struct int32 {
	using type = int32;
	static constexpr int value = n;
	};

cleoold / advancedtype.ts

Last active May 18, 2020 21:36

remember type knowledge

	/** https://www.typescriptlang.org/docs/handbook/advanced-types.html */


	/** intersection type */

	/** returns a new object with properties coming from two given objects */
	const merge = <T extends object, S extends object>(first: T, second: S): T & S => {
	const res: Partial<T & S> = {};
	for (const prop in first)
	if (first.hasOwnProperty(prop))

cleoold / index.html

Last active February 9, 2020 23:53

Two plain CSS buttons

	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Button</title>
	<link href="https://fonts.googleapis.com/css?family=Raleway:600&display=swap" rel="stylesheet">
	</head>

	<style>

cleoold / index.html

Created February 6, 2020 06:37

React Counter example 2

	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Button</title>
	<link href="https://fonts.googleapis.com/css?family=Raleway&display=swap" rel="stylesheet">
	</head>