ProgrammingExamples - User contributions [en]

CPP/HexToInt

2011-06-15T04:13:58Z

Newacct: /* HexToInt.cxx */

==HexToInt.cxx==
<source lang="cpp">
#include <iostream>
#include <sstream>
#include <string>

int main(int argc, char *argv[])
{

std::string hexNumber = "0x12";
std::stringstream ss(hexNumber);
int output;
ss >> std::hex >> output;
std::cout << output;
return 0;
}

</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(HexToInt)

ADD_EXECUTABLE(HexToInt HexToInt.cxx )

</source>

CPP/IntToHex

2011-06-15T04:12:16Z

Newacct: /* IntToHex.cxx */

==IntToHex.cxx==
<source lang="cpp">
#include <iostream>
#include <sstream>

int IntToHex(int input);

int main(int argc, char* argv[])
{
int serial = 40000359;
int serialHex = (int)0x40000359;
int convertedSerial = IntToHex(serial);

std::cout << serialHex << std::endl;
std::cout << convertedSerial << std::endl;

return 0;
}

int IntToHex(int input)
{
std::stringstream ss;
ss << input;
int output;
ss >> std::hex >> output;

return output;
}
</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(IntToHex)

ADD_EXECUTABLE(IntToHex IntToHex.cxx)

</source>

CPP/STL/MultiMap

2011-06-15T04:08:20Z

Newacct:

==MultiMap.cpp==
<source lang="cpp">
#include <iostream>
#include <map>

int main(int argc, char *argv[])
{

std::multimap <int, double> MyMap;

//create a mapping from "testone" to 111
MyMap.insert(std::make_pair(1, 1.2));

//create an iterator
std::map<int, double>::iterator iter;

iter = MyMap.find(1);

if(iter == MyMap.end())
{
std::cout << "Not found." << std::endl;
}
else
{
std::cout << "Found: " << iter->second << std::endl;
}

return 0;
}

</source>