[Dev-C++] a trivial question on for loops

[Luigi S. <gi...@li...>]

Hello everybody,

I know this is an easy one, but what I've seen on a C++ book puzzled me.

Consider the two pieces of code that follow:

1) as found on a recent C++ book
list<int> l_int;
// ... fill the list with a few intergers
for (list<int>::const_iterator i = l_int.begin(), i != l_int.end(); ++i)
    // ... do something

2) as I used to know
list<int> l_int;
// ... fill the list with a few intergers
list<int>::const_iterator stop = l_int.end();
for (list<int>::const_iterator i = l_int.begin(), i != stop; ++i)
    // ... do something

The two pieces are equivalent, but the second one is more efficient. Do you 
agree with me?

--
gisan
gi...@li...