Does D have too many features?

[Andrej Mitrovic]

On 4/29/12, Timon Gehr <timon.gehr at gmx.ch> wrote:
> - 'in' operator returning a pointer to the element.

AFAIK this is a property of how the opIn_r function is implemented,
nothing much to do with the language itself.

But it does allow for some neat tricks, like:

    int[int] hash;
    hash[1] = 2;
    int value = *enforce(1 in hash, new Exception("1 not in hash"));
    assert(value == 2);
or:
    if (auto val = 1 in hash)
        ...use val pointer (+ if it's a class/struct pointer you still
have access to the dot syntax)
    else
        ... errors..