melvyniandrag

/*
 * A code sample showing the use of the STL (priority_queue, vector), inheritence from an
 * abstract class, templated classes, and templated functors.
 * Also, use of c++11 features.
 * Also, use of pointers to store inherited elements in a vector of type base_class.
 * 
 * There's alot of interesting C++ stuff in here.
 * 
 * Melvyn Ian Drag ~ 1 March 2015. 
 * Compile with g++ -std=c++11 -o inherit inherited_vector.cpp

melvyniandrag

/*
Compiled with 
g++ -std=c++11 threads.cpp -pthreads

on ubuntu 15.04 with g++ 4.8
My strange output is:

> ./a.out 
Hello from main!
Hello from thread 25615440

melvyniandrag

#include <iostream>
#include <string>

class BartoszMilewski{
public:
    BartoszMilewski(){
        greeting = "Hello";
        std::cout << greeting << std::endl;
    }   
    ~BartoszMilewski(){

melvyniandrag

#ifndef BASE_H
#define BASE_H

#include <map>
#include <string>
#include <iostream>
 
class Base{
public:
    const std::map<std::string, std::string>& m;

melvyniandrag

#include "t.h"

int main()
{
    myClass mc; 
    mc.f(1);
    mc.f("hi");
}

melvyniandrag

#include <mpi.h>
#include <openssl/evp.h>
#include <openssl/ec.h>
#include <iostream>
#include <cstring>
#include <cassert>

void handleErrors(){
    ;
}

melvyniandrag

/*
Compile me with g++ main.cpp -lssl -lcrypto

The computeNeededSharedMemory() function has alot of stuff that is duplicated in main(). It should be refactored.
Also I forgot to free some stuff at the end. Just add the appropriate calls to the appropriate free methods. For me, its lunchtime
now.
*/

#include <cassert>
#include <string>

melvyniandrag

/*
 * Small test of the performance of 
 *  - unordered_set vs set 
 *  - unordered_map vs map
 * Compile with g++ main.cpp -std=c++11
 * As expected, the unordered versions are faster because they use hash functions, not trees.
 */

#include <unordered_map>
#include <map>

melvyniandrag

import java.math.BigInteger;
import java.security.PublicKey;
import java.security.PrivateKey;
import java.security.KeyFactory;
import java.security.Security;
import java.security.KeyPairGenerator;
import java.security.KeyPair;
import java.security.SecureRandom;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.ECGenParameterSpec;

melvyniandrag

#include <unistd.h>
#include <iostream>
#include <map>
#include <set>
#include <vector>
#include <pthread.h>

class Base{
public:
    int x;