Simple class to save and load ini-formatted file
IniSettings settings("config.ini");
settings.beginGroup("HELLO");
std::string val1 = settings.value("val1");
int val2 = settings.value("val2", 0);
double val3 = settings.value("val3", 0.);
settings.endGroup();
IniSettings settings("config.ini");
settings.beginGroup("HELLO");
settings.setValue("val1", "hello");
settings.setValue("val2", 123);
settings.setValue("val3", 1.23);
settings.endGroup();