I need a “placeholder” value of a (parametric) bits type, for type stability, in certain branches of my code. Ie I need a function f such that f(T) isa T. When T <: Number, zero(T) works, but I need something more general. I am not sure what the best way of doing this is though. I thought of the fo…

Uninitialized ("random") value of bits type

nalimilan October 2, 2017, 4:40pm 3

Nullable was exactly designed for that. In Julia 0.7, the performance of Union{T, Void} has been/will be improved so that it no longer kills performance.

Topic		Replies	Views
What's a good way to get some value (doesn't matter what the value is) of a type `T` `where T` New to Julia	11	834	October 30, 2019
How to make fields in type object undefined General Usage	3	1125	April 6, 2017
Nullable with an unknown type General Usage	4	2291	April 15, 2017
Syntax sugar for Union{T, Void} Internals & Design proposal	5	1151	December 9, 2016
Combinators on Nullables Internals & Design question	7	1350	January 21, 2017

Uninitialized ("random") value of bits type

Related topics