fOn 04/27/2014 06:00 PM, David Held wrote: > I would like to do something like this: > > Foo[Bar][Baz] nestedAA; > auto innerAA = nestedAA[someBaz]; > innerAA[someBar] = someFoo; > assert(someFoo in nestedAA[someBaz]); in operator uses a key, not a value. This should work: assert(someBar in nestedAA[someBaz]); Ali