Comparison between two functions that do the same thing. One is writen out in regular form with a lot of repition, the other uses function pointers.

FunctionPointers.cpp

void Ogre::DotSceneLoader::processEnvironment(TiXmlElement *XMLNode)
{
    const String attrNames [] = {"fog", "skyBox", "skyDome", "skyPlane", "clipping"};
    void (Ogre::DotSceneLoader::*funcNames[]) (TiXmlElement*) = {
        &Ogre::DotSceneLoader::processFog, 
        &Ogre::DotSceneLoader::processSkyBox,
        &Ogre::DotSceneLoader::processSkyDome, 
        &Ogre::DotSceneLoader::processSkyPlane,
        &Ogre::DotSceneLoader::processClipping};

    TiXmlElement *pElement;
    for(uint i = 0; i < 5; ++i)
        if(pElement = XMLNode->FirstChildElement(attrNames[i]))
            (this->*funcNames[i])(pElement);
    if(pElement = XMLNode->FirstChildElement("colourAmbient"))
        mSceneMgr->setAmbientLight(parseColour(pElement));
}

Regular.cpp

void Ogre::DotSceneLoader::processEnvironment(TiXmlElement *XMLNode)
{
    TiXmlElement *pElement;
 
    if(pElement = XMLNode->FirstChildElement("fog");)
        processFog(pElement);
 
    if(pElement = XMLNode->FirstChildElement("skyBox");)
        processSkyBox(pElement);
 
    if(pElement = XMLNode->FirstChildElement("skyDome");)
        processSkyDome(pElement);
 
    if(pElement = XMLNode->FirstChildElement("skyPlane");)
        processSkyPlane(pElement);
 
    if(pElement = XMLNode->FirstChildElement("clipping");)
        processClipping(pElement);
 
    if(pElement = XMLNode->FirstChildElement("colourAmbient");)
        mSceneMgr->setAmbientLight(parseColour(pElement));
}