François Duranleau wrote:
On Sun, 7 Oct 2007, Dave Harris wrote:
It misses this one:
template <typename T> class Point3 { T v[3]; public: T &operator[]( size_t i ) { return v[i]; } T &x() { return v[0]; } T &y() { return v[1]; } T &z() { return v[2]; } };
which in my view is the only way to fly. It has no run-time overhead (provided the trivial functions are inlined). It does not rely on non-standard or non-portable features. It's simple and easy to understand. It has the added benefit that the underlying representation is kept private, and all access done via member functions.
The main drawback is the extra brackets. cout << p.x();
rather than: cout << p.x;
Which is a pain, but I think the benefits are worth it.
I was beginning to wonder when finally someone would bring this one. I totally agree that this is the best option, and I personnaly don't understand what is the big fuss about adding the extra parenthesis.
FWIW I also totally agree with you both. On both accounts. Fernando Cacciola