use @BioTurboNick's cool splatting trick

JuliaLang · Jan 28, 2021 · c13569a · c13569a
1 parent feeb198
commit c13569a
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/base/abstractarray.jl b/base/abstractarray.jl
@@ -1793,10 +1793,9 @@ typed_hcat(T::Type, A::AbstractArray...) = cat_t(T, A...; dims=Val(2))
 
 # 2d horizontal and vertical concatenation
 
-tuple_cat(t) = foldl((x, y) -> (x..., y...), t; init=())
 # these are produced in lowering if splatting occurs inside hvcat
-hvcat_rows(rows::Tuple...) = hvcat(map(length, rows), tuple_cat(rows)...)
-typed_hvcat_rows(T::Type, rows::Tuple...) = typed_hvcat(T, map(length, rows), tuple_cat(rows)...)
+hvcat_rows(rows::Tuple...) = hvcat(map(length, rows), (rows...)...)
+typed_hvcat_rows(T::Type, rows::Tuple...) = typed_hvcat(T, map(length, rows), (rows...)...)
 
 function hvcat(nbc::Integer, as...)
     # nbc = # of block columns