map(+, 1, (1, 2, 3)) succeeds

[Sacha0]

... returning Vector{Int}(2). A consequence of zip's truncation behavior and the absence of an argument shape check in the entry point to map I imagine? Should this behavior change? Best!

[dlfivefifty]

I think this is essentially the same issue: for custom iterators, map doesn't check bounds (on 0.6-rc1):

immutable FooIterator end

Base.start(::FooIterator) = 1
Base.next(::FooIterator,st) = st,st+1
Base.done(::FooIterator,st) = st ≥ 3
Base.length(::FooIterator) = 2
Base.eltype(::FooIterator) = Int

map((x,y)->x,[0.,0.,1.],FooIterator())  # succeeds

[martinholters]

Ref. #20499, especially #20499 (comment).

[vtjnash]

Not currently a bug, just how map and zip are currently defined in v1