Skip to content

eachindex for linear indexing for Array and Memory: typeassert #59410

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 2 commits into from
Closed

eachindex for linear indexing for Array and Memory: typeassert #59410

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
b02d0c6
`eachindex` for linear indexing for `Array` and `Memory`: typeassert
nsajko Aug 27, 2025
a549448
add return type inference test
nsajko Aug 27, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion base/abstractarray.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -387,7 +387,7 @@ function eachindex(A::AbstractArray, B::AbstractArray...)
@inline
eachindex(IndexStyle(A,B...), A, B...)
end
eachindex(::IndexLinear, A::Union{Array, Memory}) = unchecked_oneto(length(A))
eachindex(::IndexLinear, A::Union{Array, Memory}) = unchecked_oneto(length(A)::Int)
eachindex(::IndexLinear, A::AbstractArray) = (@inline; oneto(length(A)))
eachindex(::IndexLinear, A::AbstractVector) = (@inline; axes1(A))
function eachindex(::IndexLinear, A::AbstractArray, B::AbstractArray...)
Expand Down
7 changes: 7 additions & 0 deletions test/arrayops.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2654,6 +2654,13 @@ let A = zeros(Int, 2, 2), B = zeros(Float64, 2, 2)
end
end

@testset "return type inference of linear `eachindex` for `Array` and `Memory`" begin
f = a -> eachindex(IndexLinear(), a)
for typ in (Array, Memory, Union{Array, Memory})
@test isconcretetype(Base.infer_return_type(f, Tuple{typ}))
end
end

# issue #14482
@inferred map(Int8, Int[0])

Expand Down