Deleting an element from a vector

I'v echecked before how to delete a vector entry, but that was to go through the whole vector one element at a time. I was wandering if I can erase the last vector entry if it's equal to something in particular.
I'm trying this:

Code:

          if(strncmp(SAD.vectDL[SAD.vectDL.size() - 1].Param, "ENDL", 4) == 0)
			{
				iterator = vars.vectParmSelectedS.begin();

				while(iterator != vars.vectParmSelectedS.end())     
				{
					if(strncmp(SAD.vectDL[SAD.vectDL.size() - 1].Param, "ENDL", 4) == 0)
						iterator = vars.vectParmSelectedS.erase(iterator);
					else
						++iterator;

				}
			}

So if the last entry in the vector is "ENDL" I want to delete it. In this case I got hrough the whole vector looking for that entry again.
There must be a less painful way to delete an entry. Ex: can I use the index of the last entry somehow?
to avoid doing all of this, is there a swap function that I can use to swap the last entry with another on in the vector?

Take a look at back() and pop_back().

Code:

vector<T> v;
T target;

if(v.back() == target)
{
     v.erase(v.back(), v.end());
     // or simply v.erase(v.back());
}

Does that work for you?

I actually thought it would be safer to delete all instances of that entry so I used:

Code:

vector <DataLine>::iterator iterator1 = SAD.vectDL.begin();

	while(iterator1 != SAD.vectDL.end())     
	{
		if(iterator1->Param == "ENDL")
			iterator1 = SAD.vectDL.erase(iterator1);
		else
			++iterator1;

	}

but pop-back is very suefull.

Thanks,

AS.