C++ question

Do I use

MyClass::MyClass (const char* description)
{
    this->description = description;
}
MyClass::MyClass (const std::string& description)
{
    this->description = description;
}

or

MyClass::MyClass (const std::string description)
{
    this->description = description;
}

?

The correct answer is

MyClass::MyClass (const std::string& description)
{
    this->description = description;
}

Unless you're interfacing with C or legacy code that needs char*. All classes/structs in C++ are value types, so you should never do

MyClass::MyClass (const std::string description)
{
    this->description = description;
}

which would cause the string to be copied.