Andrei Alexandrescu:
I don't see why the excitement around anonymous bindings. It's
a rare case and it's not like we're running out of symbols,
particularly given they're by definition written only once :o).
It's not a rare case, I can test this searching in my code for
"foreach (_;".
And while not essential, anonymous loops are useful because
adding an useless variable to your code increases its complexity
a little without giving something back. It's just like adding an
useless variable inside one of your functions. In C/C++ I look
for the "unused variable" warnings (a warning that is currently
missing in D).
When you define a function, and you don't want to use its second
argument, D allows you to not give it a name, despite you are not
running out of symbols:
void foo(int x, int) {}
When I see code with a loop with a variable, to understand the
loop I first of all search how such variable is used inside the
loop. If the loop variable is anonymous this tells me something
important about the loop, and reduces the noise.
Bye,
bearophile
