Strange behaviour of var

[Timon Gehr]

On 11/10/2011 10:45 PM, Fabian wrote:
> oh ... I see. Thank you ;)

++i is unidiomatic, and if the result is unused it means the same thing 
as i++. So, I'd actually go with i++. The only reason why one would use 
++i is because it is less efficient for C++ iterators, but D does not 
have that problem at all. This is really not important though.

however, about:

for(int i = 0; i <= n -1; i++){}

this is the way to go (less gotchas if index is a size_t, which it 
sometimes should)

for(int i = 0; i < n; i++){}

But because this exact construct is so common in C and C++, D has an own 
syntax for it:

foreach(i;0..n){}

This does exactly the same thing.

Always use foreach for trivial iteration.