Symbols

[wizard25]

Hey Guys

Can someone please explain to me the following symbols in C++, what they mean and how they work. I've searched around but all the information I've found is either to vague or unclear. The symbols are the following:

1) ?

2) int&

3) +=

4) .

5) getline ( )


Any help will be appreciated

Thanks

[Bazzy]

1) Ternary operator: http://www.cplusplus.com/doc/tutorial/operators/
2) Declaration of a reference: http://www.cplusplus.com/doc/tutorial/functions2/
3) Increase operator x += 5; //add 5 to the value of 'x'
4) Operator used to access object members, http://www.cplusplus.com/doc/tutorial/classes/
5) Function to read input: http://www.cplusplus.com/reference/string/getline/ http://www.cplusplus.com/reference/iostream/istream/getline/