{"action":"created","issue":{"url":"https://api.github.com/repos/JuliaLang/julia/issues/11026","labels_url":"https://api.github.com/repos/JuliaLang/julia/issues/11026/labels{/name}","comments_url":"https://api.github.com/repos/JuliaLang/julia/issues/11026/comments","events_url":"https://api.github.com/repos/JuliaLang/julia/issues/11026/events","html_url":"https://github.com/JuliaLang/julia/issues/11026","id":71237715,"number":11026,"title":"32bit memory error (uncovered with FixedPointNumbers)","user":{"login":"timholy","id":1525481,"avatar_url":"https://avatars.githubusercontent.com/u/1525481?v=3","gravatar_id":"","url":"https://api.github.com/users/timholy","html_url":"https://github.com/timholy","followers_url":"https://api.github.com/users/timholy/followers","following_url":"https://api.github.com/users/timholy/following{/other_user}","gists_url":"https://api.github.com/users/timholy/gists{/gist_id}","starred_url":"https://api.github.com/users/timholy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/timholy/subscriptions","organizations_url":"https://api.github.com/users/timholy/orgs","repos_url":"https://api.github.com/users/timholy/repos","events_url":"https://api.github.com/users/timholy/events{/privacy}","received_events_url":"https://api.github.com/users/timholy/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/JuliaLang/julia/labels/32-bit","name":"32-bit","color":"fef2c0"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":9,"created_at":"2015-04-27T10:03:51Z","updated_at":"2015-06-07T15:38:58Z","closed_at":null,"body":"I'm just parroting @tkelman here (https://github.com/timholy/Images.jl/issues/284), but using FixedPointNumbers one can uncover some 32bit specific bugs. On 64bit, one gets this:\r\n```jl\r\njulia> using FixedPointNumbers\r\n\r\njulia> Ufixed12[0.6 0.2; 1.4 0.8]\r\n2x2 Array{FixedPointNumbers.UfixedBase{UInt16,12},2}:\r\n 0.6  0.2\r\n 1.4  0.8\r\n```\r\nOn 32bit this either gives an `InexactError` or nonsense. However, scalars like `Ufixed12(1.4)` work fine."},"comment":{"url":"https://api.github.com/repos/JuliaLang/julia/issues/comments/109765537","html_url":"https://github.com/JuliaLang/julia/issues/11026#issuecomment-109765537","issue_url":"https://api.github.com/repos/JuliaLang/julia/issues/11026","id":109765537,"user":{"login":"mbauman","id":154641,"avatar_url":"https://avatars.githubusercontent.com/u/154641?v=3","gravatar_id":"","url":"https://api.github.com/users/mbauman","html_url":"https://github.com/mbauman","followers_url":"https://api.github.com/users/mbauman/followers","following_url":"https://api.github.com/users/mbauman/following{/other_user}","gists_url":"https://api.github.com/users/mbauman/gists{/gist_id}","starred_url":"https://api.github.com/users/mbauman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mbauman/subscriptions","organizations_url":"https://api.github.com/users/mbauman/orgs","repos_url":"https://api.github.com/users/mbauman/repos","events_url":"https://api.github.com/users/mbauman/events{/privacy}","received_events_url":"https://api.github.com/users/mbauman/received_events","type":"User","site_admin":false},"created_at":"2015-06-07T15:38:58Z","updated_at":"2015-06-07T15:38:58Z","body":"Very strange. It doesn't really, besides the fact that these seem to be perturbation-sensitive LLVM codegen issues. It's not very surprising that a refactoring would change things. It"}}