Julia: Feature request: allow more update operators, e.g. `a ⊗= 2` as shorthand for `a = a ⊗ 2`
Only a subset of available operators allow the shorthand OPERATOR= notation. I think the current situation is that only ASCII operators are covered.
e.g.
julia> a ×= b
ERROR: syntax: unexpected "="
in eval(::Module, ::Any) at ./boot.jl:236
I think it would be reasonable if all operators which allow binary infix syntax would also allow the shorthand. (This came up when I defined a custom ⊗ operator.)
carlobaldassi
All 7 comments
I think comparison operators should not be included, for consistency. After all, a >= b does not mean a = a > b.
TotalVerb
on 20 Apr 2016
It is always simple to define some more update operator. But the true question is whether they are _in-place_?
Sisyphuss
on 21 Apr 2016
Not the place, @Sisyphuss.
StefanKarpinski
on 21 Apr 2016
This seems like a reasonable proposal to me – shall I mark it as accepted, @JeffBezanson?
StefanKarpinski
on 13 Sep 2016
Yes.
JeffBezanson
on 13 Sep 2016
Not release blocking. Best!
Sacha0
on 22 Dec 2016
This feature would make sense because there is no situation in Julia where an operator immediately followed by an equal sign makes sense, except as an updating operator.
For example, ∪= could never make sense as anything but an updating operator. Since that is the case, it makes total sense to have the language support this feature.
chakravala
on 3 Oct 2019
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Most helpful comment
This feature would make sense because there is no situation in Julia where an operator immediately followed by an equal sign makes sense, except as an updating operator.
For example,
∪=could never make sense as anything but an updating operator. Since that is the case, it makes total sense to have the language support this feature.