Julia 1.2 feature freeze April 4th

[chakravala]

I believe that @stevengj would approve of it

★ is not an operator

★ is U+2605, “black star”, in Unicode category So (Symbol, other). For the most part (with the exception of some arrows), Julia only parses a subset of category Sm (Symbol, math) as infix operators. In particular, you should look at U+22C6 (“star operator”), typed by tab-completing \star in the REPL, which is in category Sm and is parsed as an infix operator: julia> ⋆(x,y) = 2x+y ⋆ (generic function with 1 method) julia> 3 ⋆ 4 10 (Unfortunately, in many fonts, ⋆ is shown rather small.)