# Generating multithreaded functions?
**URL:** https://discourse.julialang.org/t/generating-multithreaded-functions/28717
**Category:** General Usage
**Created:** [September 13, 2019, 11:57am UTC](https://discourse.julialang.org/t/generating-multithreaded-functions/28717 "2019-09-13T11:57:11Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Sheemon7](https://discourse.julialang.org/u/Sheemon7)
#### Post date: [September 13, 2019, 11:57am UTC](https://discourse.julialang.org/t/generating-multithreaded-functions/28717/1 "2019-09-13T11:57:11Z")
Is it possible to somehow generate functions with a multithreaded for-loop with @threads macro (or any other construct with the same fuctionality)?
The straightforward way fails
```julia
julia> @generated function f(x::Integer)
quote
@threads for i = 1:x
println(i)
end
end
end
julia> f(5)
ERROR: generated function body is not pure. this likely means it contains a closure or comprehension.
```
---
### Author:  [@sdanisch](https://discourse.julialang.org/u/sdanisch)
#### Post date: [September 13, 2019, 12:27pm UTC](https://discourse.julialang.org/t/generating-multithreaded-functions/28717/2 "2019-09-13T12:27:22Z")
Would it be possible to make the inner function generated?
E.g.
```julia
function f(x::Integer)
@threads for i = 1:x
f_generated_inner(x, i)
end
end
```
---
### Author:  [@Sheemon7](https://discourse.julialang.org/u/Sheemon7)
#### Post date: [September 21, 2019, 2:16pm UTC](https://discourse.julialang.org/t/generating-multithreaded-functions/28717/3 "2019-09-21T14:16:46Z")
That’s a brilliant idea, however there is also an “initialization” part and “return” part of the function, which also depend on input types. I omitted these in the MWE above.