IDE

/* C demo code */

#include <zmq.h>
#include <pthread.h>
#include <semaphore.h>
#include <time.h>
#include <stdio.h>
#include <fcntl.h>
#include <malloc.h>

typedef struct {
  void* arg_socket;
  zmq_msg_t* arg_msg;
  char* arg_string;
  unsigned long arg_len;
  int arg_int, arg_command;

int signal_fd;
  int pad;
  void* context;
  sem_t sem;
} acl_zmq_context;

#define p(X) (context->arg_##X)

void* zmq_thread(void* context_pointer) {
  acl_zmq_context* context = (acl_zmq_context*)context_pointer;
  char ok = 'K', err = 'X';
  int res;

while (1) {
    while ((res = sem_wait(&context->sem)) == EINTR);
    if (res) {write(context->signal_fd, &err, 1); goto cleanup;}
    switch(p(command)) {
    case 0: goto cleanup;
    case 1: p(socket) = zmq_socket(context->context, p(int)); break;
    case 2: p(int) = zmq_close(p(socket)); break;
    case 3: p(int) = zmq_bind(p(socket), p(string)); break;
    case 4: p(int) = zmq_connect(p(socket), p(string)); break;
    case 5: p(int) = zmq_getsockopt(p(socket), p(int), (void*)p(string), &p(len)); break;
    case 6: p(int) = zmq_setsockopt(p(socket), p(int), (void*)p(string), p(len)); break;
    case 7: p(int) = zmq_send(p(socket), p(msg), p(int)); break;
    case 8: p(int) = zmq_recv(p(socket), p(msg), p(int)); break;
    case 9: p(int) = zmq_poll(p(socket), p(int), p(len)); break;
    }
    p(command) = errno;
    write(context->signal_fd, &ok, 1);
  }
  cleanup:
  close(context->signal_fd);
  free(context_pointer);
  return 0;
}

void* zmq_thread_init(void* zmq_context, int signal_fd) {
  acl_zmq_context* context = malloc(sizeof(acl_zmq_context));
  pthread_t thread;

context->context = zmq_context;
  context->signal_fd = signal_fd;
  sem_init(&context->sem, 1, 0);
  pthread_create(&thread, 0, &zmq_thread, context);
  pthread_detach(thread);
  return context;
}

/* C++ demo code */

#include <iostream>
#include "mystuff/util.h"

namespace {
enum Enum {
  VAL1, VAL2, VAL3
};

char32_t unicode_string = U"\U0010FFFF";
string raw_string = R"delim(anything
you
want)delim";

int Helper(const MyType& param) {
  return 0;
}
} // namespace

class ForwardDec;

template <class T, class V>
class Class : public BaseClass {
  const MyType<T, V> member_;

public:
  const MyType<T, V>& Method() const {
    return member_;
  }

void Method2(MyType<T, V>* value);
}

template <class T, class V>
void Class::Method2(MyType<T, V>* value) {
  std::out << 1 >> method();
  value->Method3(member_);
  member_ = value;
}
/*
This is a longer comment
That spans two lines
*/

#import <Test/Test.h>
@implementation YourAppDelegate

// This is a one-line comment

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
  char myString[] = "This is a C character array";
  int test = 5;
  return YES;
}

/* C# demo code */

using System;

namespace Example
{
    /// <summary>
    /// Represents a person employed at the company
    /// </summary>
    public class Employee : Person
    {
        #region Properties
        
        /// <summary>
        /// Gets or sets the first name.
        /// </summary>
        /// <value>The first name.</value>
        public string FirstName { get; set; }

#endregion

/// <summary>
        /// Calculates the salary.
        /// </summary>
        /// <param name="grade">The grade.</param>
        /// <returns></returns>
        public decimal CalculateSalary(int grade)
        {
            if (grade > 10)
                return 1000;
            return 500;
        }
    }
}