iwagaki

// #include <bits/stdc++.h>
// #include <iostream>
// #include <vector>
// #include <algorithm>
// #include <map>
#include <cstdio>
#include <cstdlib>
#include <cassert>

using namespace std;

iwagaki

#!/bin/bash

declare -r TEST="test" # read-only

TEST="!" # causes an error

echo ${TEST}

iwagaki

#include <list>
#include <cstdio>

using namespace std;

class LIFO {
public:
   void push_back(int a) {
       mList.push_back(a);
    }

iwagaki

#include <cstdio>

#define MARKER(fmt, ...) printf("%s: %d: %s(): " fmt "\n", __FILE__, __LINE__ , __func__, ##__VA_ARGS__)

int main(int argc, char *argv[])
{
    MARKER("test %d", 100);
    
    return 0;
}

iwagaki

#include <cstdio>

void checkVTBL0andCall(void* ptr)
{
    long long* ptr_object = (long long*)ptr;
    printf("ptr_object = %llx\n", (long long)ptr_object);

    long long vptr = ptr_object[0];
    printf("vptr = %llx\n", (long long)vptr);

iwagaki

class ClassA
{
public:
    void destroy() const
    {
        delete this;
    }

    static ClassA* create()
    {

iwagaki

int a[] = {1, 2, 3, 4, 5};
vector<int> example(a, a + sizeof(a) / sizeof(a[0]));

iwagaki

require 'net/http'
require 'uri'
require 'pp'

def expandShortenURI(s)
  uri = URI(s)
  Net::HTTP.start(uri.host, uri.port) {|http|
    response = http.head(uri.request_uri)
    case response
    when Net::HTTPRedirection

iwagaki

sudo chown root:root adb
sudo chmod u+sx adb

iwagaki

person1<-function(x) { x }
person2<-function(x) { 2 * (x-10)}
plot(0, type="n", xlim=c(0,50), ylim=c(0,100), xlab="t", ylab="Performance")
curve(person1, 0, 50, add=T, col="blue")
curve(person2, 10, 50, add=T, col="red")
legend("topright", legend=c("Person with 1H", "Person with 2H"), pch=c(4,4), col=c("blue", "red"))

person1<-function(x) { 1 * exp(0.15 * x) - 1 }
person2<-function(x) { 4 * exp(0.15 * (x - 10)) -  4}
plot(0, type="n", xlim=c(0,50), ylim=c(0,500), xlab="t", ylab="Performance")