Template?

[Technocrat]

I asked this before but never really got an answer. So I will try again

I have a std::vector that I search using lower_bound(). To do this I have a struct with a () operator like so:

struct LM_LESS
{
     bool operator () (const LMABREP& lhs , const LMABREP& rhs)
    {
        if (lhs.sLID.size() != rhs.sLID.size())
			return lhs.sLID.size() > rhs.sLID.size();
		return lhs.sLID < rhs.sLID;
    }
};

LMABREP struct looks like:

struct LMABREP
{
	string sLID;
	string sStreetNumber;
	string sStreet;
	string sStreetSufix;
	string sStreetPrefix;
};

So basically sLID contains a number and I am looking for it using lower_bound(). The reason being is there is a possible repeat.

My question is can I turn my operator () into a template because I use functions like this a lot with many different vectors with many different structs. I really dont want to have to write a new () every time I use a different struct.

[CornedBee]

Do all of your structs have this member? Then you can:

template <typename T>
struct LM_LESS
{
     bool operator () (const T& lhs , const T& rhs)
    {
        if (lhs.sLID.size() != rhs.sLID.size())
			return lhs.sLID.size() > rhs.sLID.size();
		return lhs.sLID < rhs.sLID;
    }
};