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walktree :: Tree -> Counter Tree
walktree (Node left right) = do
	left' <- walktree left
	right' <- walktree right
	return (Node left' right')
--walktree (Node left right) =
--	walktree left >>= \left' ->
--	walktree right >>= \right' ->
--	return (Node left' right')
walktree (NormalLeaf x) = return x

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import serial
from serial.tools import miniterm
import subprocess, sys, re, os

class ESPMiniterm(miniterm.Miniterm):
  def handle_menu_key(self, c):
    if c == '\x15':  # ctrl-u
      self.upload_file()
    else:
      super(ESPMiniterm, self).handle_menu_key(c)

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/*
 * Copyright (c) 2015, Majenko Technologies
 * Copyright (c) 2016, Benjamin Koch
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.

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/indices/
/self-installs/

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#!/bin/sh

#cat /proc/acpi/ibm/fan
echo "$*" >/proc/acpi/ibm/fan
head -n 3 /proc/acpi/ibm/fan

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#!/bin/sh
# http://stackoverflow.com/a/1557398
for sha in $(git rev-list --all --pretty=format:"" | sed "s/^commit //") ; do git diff-tree -r -c -M -C --no-commit-id $sha | awk '{print $4}' | git cat-file --batch-check 2>/dev/null | awk '{ sum+=$3 } END {printf "%010d %s\n", sum, "'"$sha"'"}' ; done | sort | tail

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#include <iostream>
#include <string>

using namespace std;

class PrintLifecycle {
	string name;
public:
	PrintLifecycle(string name) : name(name) {
		cout << "constructor of " << name << endl;

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#include <iostream>
#include <memory>


class Foo {
	std::string name;
public:
	Foo(std::string name) : name(name) {
		std::cout << "creating " << name << std::endl;
	}