sixtyfive

#include <stdio.h>

int main(void) {
  unsigned int a = 5;
  a -= (unsigned)10;
  printf("%i\n", a); // -5 with amd64/gcc, but only by coincidence (undefined!)
  printf("%u\n", a); // some really high number; UINTMAX - 5...
}

sixtyfive

#!/bin/bash

GITHUBUSERNAME=""

for repo in $(cat repoURLs.txt); do
  git clone $(echo $repo | sed s/LibrePCB-Libraries/$GITHUBUSERNAME/g)
  dir=$(basename -s '.git' $repo)
  for subdir in cmp cmpcat dev pkg pkgcat sym; do
    mkdir -p $dir/$subdir
  done

sixtyfive

OUT=Virtual-1 X=2560 Y=1440 R=60 bash -c \
  'MOD=${X}x${Y}_$R.00; xrandr --newmode $MOD $(cvt $X $Y $R | grep -v "#" | cut -d "\"" -f 3); xrandr --addmode $OUT $MOD; xrandr --output $OUT --mode $MOD'

sixtyfive

#!/usr/bin/env ruby

main_lang = ARGV[0]
input_pdf = ARGV[1]
temp_dir = 'temp'

if main_lang && input_pdf
  `mkdir -p #{temp_dir}`
  print "Splitting PDF into separate pages... "
  `pdfseparate "#{input_pdf}" #{temp_dir}/page_%d.pdf`

sixtyfive

#include <ShiftRegister74HC595.h>

int numberOfShiftRegisters = 2;
int numberOfCapacitorsToPop = 16;
int serialDataPin = 0;
int clockPin = 1;
int latchPin = 2;
int outputEnablePin = 3;

ShiftRegister74HC595 sr (numberOfShiftRegisters, serialDataPin, clockPin, latchPin); 

sixtyfive

#include <SPI.h>

#define PIN_LED GPIO_NUM_4
#define PIN_VREF GPIO_NUM_25
#define PIN_MOSI GPIO_NUM_23
#define PIN_CLOCK GPIO_NUM_18
#define PIN_GAIN_EN GPIO_NUM_12
#define PIN_OFFSET_EN GPIO_NUM_14

void StartSPI()

sixtyfive

// PULSE_PIN, LED_BUILTIN
// WIFI_SSID, WIFI_PASSWORD
// MQTT_SERVER, MQTT_PORT
// MQTT_META_TOPIC, MQTT_TOTAL_TOPIC, MQTT_LASTMIN_TOPIC
#include "config.h"

#include <EspMQTTClient.h>

EspMQTTClient client(
  WIFI_SSID, WIFI_PASSWORD,

sixtyfive

float v_supply  = 3.29; // measured: 3.29
int   adc_pin  =  4;
int   adc_bits = 12;
  /* effective range of measurement:
   * ADC_0db:    100-950mV  (+-23mV)
   * ADC_2_5db: 100-1250mV (+-30mV)
   * ADC_6db:    150-1750mV (+-40mV)
   * ADC_11db:   150-2450mV (+-60mV) - default value
   */
adc_attenuation_t adc_attn = ADC_0db;

sixtyfive

#!/bin/bash

# there's a tool called numfmt which does the bytes thing for you
# numfmt can also absorb stdin, so the entire thing could just be 
#   `apk info | 
#    numfmt --to=iec | # (might need --invalid=ignore and --field=...)
#    awk -v OFS="\t" '... {print size, pkg}'
# or you can use awk to do the bytes stuff and use `apk info | awk ...'
bytesToHuman() {
  b=${1:-0}; d=''; s=0; S=(Bytes {K,M,G,T,P,E,Z,Y}iB)

sixtyfive

REGEX = /([ -]+)\[{2}([^\]]*)\]\([^\]]*\]\(([^\)]*)\)/
SUBST = '\1[\2](\3)'

task :fix_toc_regex do
  string = STDIN.read
  puts string.gsub(REGEX, SUBST)
end

task :fix_toc_loop_plus_regex do
  unless STDIN.tty?