[julia-users] Re: Is there a direct way to get binary representation of a float?

[Uliano Guerrini]

Thanks to the pointers given I dug a little bit under the hood ad found the 
promising unbox intrinsic function. It would exactly be what I was looking 
for but it seems to work only one way:

*julia> **using Base.Intrinsics*


*julia> **theFloat=1.0*

*1.0*


*julia> **b=unbox(Int64,theFloat)*

*4607182418800017408*


*julia> **bits(theFloat)*

*"0011111111110000000000000000000000000000000000000000000000000000"*


*julia> **type Words2x32*

*         lo::Int32*

*         hi::Int32*

*       end*


*julia> **c=Words2x32(0,1072693248)*

*Words2x32(0,1072693248)*


*julia> **d=unbox(Float64,c)*

*1.0*


*julia> **bits(d)*

*"0011111111110000000000000000000000000000000000000000000000000000"*


*julia> **e=unbox(Words2x32,d)*

*Segmentation fault: 11*


*Is it a bug or I have used the function in an unexpected way?*