chenfengyuan

#!/bin/bash -e

# Download OpenJDK Reference Implementation Sources from
# http://jdk.java.net/java-se-ri/10
curl -O https://download.java.net/openjdk/jdk10/ri/openjdk-10_src.zip

# Navigate to the hsdis sources
unzip openjdk-10_src.zip
cd openjdk/src/utils/hsdis

chenfengyuan

class A():
    def __del__(self):
        pass
def foo():
    a=A()
    b=A()
    a.a=b
    b.a=a
    b.data = [0] * 1000 * 1000 * 100
    import time, gc

chenfengyuan

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"ScanCode Map"=hex:00,00,00,00,00,00,00,00,22,00,00,00,2d,00,30,00,24,00,2e,00,\
11,00,33,00,33,00,11,00,12,00,20,00,34,00,12,00,1b,00,0d,00,0d,00,1b,00,16,\
00,21,00,17,00,22,00,20,00,23,00,1a,00,0c,00,2e,00,17,00,23,00,24,00,14,00,\
25,00,31,00,26,00,35,00,1a,00,30,00,31,00,13,00,18,00,26,00,19,00,2f,00,34,\
00,28,00,10,00,0c,00,28,00,19,00,13,00,18,00,1f,00,1f,00,27,00,2c,00,35,00,\
15,00,14,00,22,00,16,00,25,00,2f,00,10,00,2d,00,21,00,15,00,27,00,2c,00,00,\
00,00,00

chenfengyuan

#include <algorithm>
#include <iostream>
struct C{
    int v{};
    C(int v_):v{v_}{
        std::cout << "C()[" << v << "]\n";
    }
    C(const C &)=delete;
    bool operator<(C const & o) const{
        return v < o.v;

chenfengyuan

#include <stdio.h>
#include <pwd.h>
int main()
{
  struct passwd *p;
  p = getpwnam("root");
  if (p == NULL) {
    printf("no root!\n");
  } else {
    printf("root is %d\n", p->pw_uid);

chenfengyuan

#include <iostream>
#if defined(__clang__)
    enum { max_depth = 256};
#else
    enum { max_depth = 100};
#endif

#define INIT_REGISTER(REG) \
    template<typename T, int N> \
    struct REG:REG<T, N-1>{ \

chenfengyuan

#include <iostream>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/asio/spawn.hpp>
#include <memory>

void bar(boost::asio::io_service &io, std::function<void()> cb){
    auto ptr = std::make_shared<boost::asio::deadline_timer>(io, boost::posix_time::seconds(1));
    ptr->async_wait([ptr, cb](const boost::system::error_code&){cb();});
}

chenfengyuan

%lex
%%
\s+ {}
(AND|OR)     { return 'LOG'; }
[a-zA-Z]+  { return 'VAR'; }
"("       return '('
")"      return ')'
"!"       return '!'
<<EOF>>   { return 'EOF'; }

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#include <tuple>
#include <memory>

int main(void){
    using namespace std;
    tuple<unique_ptr<char []>> b;
}

chenfengyuan

#include <tuple>
#include <memory>

int main(void){
    using namespace std;
    unique_ptr<char[]> a(new char[3]);
    make_tuple(move(a));
}