musm

[00:00:00] Build started
[00:00:00] git clone -q https://github.com/JuliaIO/JLD.jl.git C:\projects\jld-jl-28dqq
[00:00:02] git fetch -q origin +refs/pull/145/merge:
[00:00:02] git checkout -qf FETCH_HEAD
[00:00:02] Running Install scripts
[00:00:02] if ($env:APPVEYOR_PULL_REQUEST_NUMBER -and $env:APPVEYOR_BUILD_NUMBER -ne ((Invoke-RestMethod ` https://ci.appveyor.com/api/projects/$env:APPVEYOR_ACCOUNT_NAME/$env:APPVEYOR_PROJECT_SLUG/history?recordsNumber=50).builds | ` Where-Object pullRequestId -eq $env:APPVEYOR_PULL_REQUEST_NUMBER)[0].buildNumber) { ` throw "There are newer queued builds for this pull request, failing early." }
[00:00:03] (new-object net.webclient).DownloadFile($("http://s3.amazonaws.com/"+$env:JULIAVERSION), "C:\projects\julia-binary.exe")
[00:00:05] C:\projects\julia-binary.exe /S /D=C:\projects\julia
[00:00:21] IF EXIST .git\shallow (git fetch --unshallow)
[00:00:21] C:\projects\julia\bin\julia --startup-file=yes -e "versioninfo(); Pkg.clone(pwd(), \"JLD\"); Pkg.build(\"JLD\")"

musm

using BenchmarkTools
using Base: sign_mask, exponent_mask
typealias IEEEFloat Union{Float16,Float32,Float64}
_isinf{T<:IEEEFloat}(x::T) = (reinterpret(Unsigned, x) & ~sign_mask(T)) == exponent_mask(T)
_isfinite{T<:IEEEFloat}(x::T) = (reinterpret(Unsigned, x) & exponent_mask(T)) != exponent_mask(T)
_isnan{T<:IEEEFloat}(x::T) = (reinterpret(Unsigned, x) & ~sign_mask(T)) > exponent_mask(T)

      

julia> @benchmark isinf(2.0)

musm

# credits: @TotalVerb, @oxinabox, @musm  @mbauman @quinnj

julia --compile=no --precompiled=no

(x->@inbounds(x+=[0][x])+x)(9^9^9)

[@inbounds([][x])for x=9^9^9]

run(`1`)