leok7v

typedef enum colors_t {
    /* Main Panel Backgrounds */
    charcoal                   = 0x36454F,
    onyx                       = 0x353839,
    gunmetal                   = 0x2A3439,
    jet_black                  = 0x343434,
    outer_space                = 0x414A4C,
    eerie_black                = 0x1B1B1B,
    oil                        = 0x3B3C36,

leok7v

#include <assert.h>
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

typedef struct {
    char* text;

leok7v

# this file names the gist

leok7v

//  polyfit
//  Created by leo on 6/25/22.
//  Copyright © 2022 leok7v.github.io. All rights reserved.

#include <stdbool.h>
#include <assert.h>
#include <math.h>
#include <float.h>

// by Legendre in 1805:

leok7v

#pragma once /* Copyright (c) Dmitry "Leo" Kuznetsov 2021 see LICENSE for details */
#include <assert.h> // to prevent further redefinition of assert

// better assert(0 <= i && i < n, "index i=%d out of [0..%d( range", i, n);
// also available as 'swear' and 'implore' instead of assert()
// see: https://github.com/munificent/vigil

#undef assert

#if defined(_DEBUG) || defined(DEBUG) || defined(ASSERT_IN_NDEBUG)

leok7v

Delta Hex Coding ('Compression')

TLDR

Here's how to compress greyscale image bytes using dcode4:

    static void foo(byte* data, int bytes) {
        byte cenoded[bytes * 2];
        int k = encode4(data, bytes, coded, sizeof(encoded));    
        byte decoded[bytes];
 int n = decode4(encoded, k, decoded, sizeof(decoded));

leok7v

#!/bin/bash
# https://medium.com/@authmane512/how-to-build-an-apk-from-command-line-without-ide-7260e1e22676
# dependencies:
#  https://installvirtual.com/install-openjdk-8-on-mac-using-brew-adoptopenjdk/
#   brew updata
#   brew tap AdoptOpenJDK/openjdk
#   brew cask install adoptopenjdk8
# https://developer.android.com/ndk/downloads
# https://dl.google.com/android/repository/sdk-tools-darwin-4333796.zip
#   and use:

leok7v

#ifndef HASHTABLE_DEFINITION // single file library cannot use pragma once
#define HASHTABLE_DEFINITION // https://en.wikipedia.org/wiki/Header-only
                             // https://github.com/nothings/single_file_libs
/*

 License: "Unlicense" (public domain) see bottom of the file for details.

 This is brain dead 4 hours implementation of #153 of absolutely non-universal,
 simple, growing, lineral rehash, key and value retaining hashtable with open
 read/write access to table entries.

leok7v

leok7v

#include <windows.h> 
#include <stdio.h>
#include <malloc.h>

// Reworked MSDN sample starting with https://stackoverflow.com/questions/14147138/capture-output-of-spawned-process-to-string
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms682499(v=vs.85).aspx
// Implemented in ~C99 instead of C++
// Child Process window hidden (for use from WinMain() /SYSTEM:WINDOWS executable)
// Creates background thread for peeking the pipes to avoid deadlocks.
// Implements timeout in milliseconds and tames CPU utilization with WaitForMultipleObjects.