Skip to content

make length(StepRange()) type stable #45236

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

Merged
KristofferC merged 2 commits into from
May 11, 2022
Merged

make length(StepRange()) type stable #45236

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
6379ab8
make `length(StepRange())` type stable
Moelf May 8, 2022
937a25c
add checked_length
Moelf May 9, 2022
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/range.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -773,7 +773,7 @@ let bigints = Union{Int, UInt, Int64, UInt64, Int128, UInt128}
else
a = div(unsigned(diff), s) % typeof(diff)
end
return Integer(a) + oneunit(a)
return convert(T, a) + oneunit(T)
end
function checked_length(r::OrdinalRange{T}) where T<:bigints
s = step(r)
Expand Down
4 changes: 4 additions & 0 deletions test/ranges.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2031,6 +2031,10 @@ end
@test typeof(step(r)) === Int8
end

@testset "length(StepRange()) type stability" begin
typeof(length(StepRange(1,Int128(1),1))) == typeof(length(StepRange(1,Int128(1),0)))
end

@testset "LinRange eltype for element types that wrap integers" begin
struct RealWrapper{T <: Real} <: Real
x :: T
Expand Down