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Function object.byKey

Returns a forward range over the keys of the associative array.

auto byKey(T, K, V) (
  T aa
) pure nothrow @nogc @safe;


aa The associative array.


A forward range.


auto dict = [1: 0, 2: 0];
int sum;
foreach (v; dict.byKey)
    sum += v;

writeln(sum); // 3


Walter Bright, Sean Kelly


Boost License 1.0.