Initialize uninitialized BigFloat array

.github/workflows/CI.yml

@@ -20,7 +20,6 @@ jobs:
       matrix:
         version:
           - '1'
-          - '~1.11.0-0'
         os:
           - ubuntu-latest
           - macOS-latest

.github/workflows/Downstream.yml

@@ -48,6 +48,9 @@ jobs:
             @info "Not compatible with this release. No problem." exception=err
             exit(0)  # Exit immediately, as a success
           end
+        env:
+          RETESTITEMS_NWORKERS: 4
+          RETESTITEMS_NWORKER_THREADS: 2
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v3
         with:

Project.toml

@@ -1,7 +1,7 @@
 name = "MaybeInplace"
 uuid = "bb5d69b7-63fc-4a16-80bd-7e42200c7bdb"
 authors = ["Avik Pal <[email protected]> and contributors"]
-version = "0.1.2"
+version = "0.1.3"
 
 [deps]
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"

src/MaybeInplace.jl

@@ -290,6 +290,11 @@ used by `@bangbang` to determine if an array can be setindex-ed or not.
 
 @inline __similar(::CannotSetindex, x) = x
 @inline __similar(::CanSetindex, x) = similar(x)
+@inline function __similar(::CanSetindex, x::AbstractArray{<:BigFloat})
+    y = similar(x)
+    fill!(y, zero(eltype(y)))
+    return y
+end
 
 const OP_MAPPING = Dict{Symbol, Function}(:copyto! => __copyto!!, :.-= => __sub!!,
     :.+= => __add!!, :.*= => __mul!!, :./= => __div!!, :copy => __copy)

test/basictests.jl

@@ -24,6 +24,11 @@ function matmul!!(y, x, z)
     return y
 end
 
+function get_similar(x)
+    @bb z = similar(x)
+    return z
+end
+
 @testset "copyto!" begin
     x = [1.0, 1.0]
     y = [0.0, 0.0]
@@ -88,3 +93,15 @@ end
     @test matmul!!(y, x, z) == @SVector[2.0, 2.0]
     @test y == @SVector[0.0, 0.0]
 end
+
+@testset "similar" begin
+    x = [1.0, 1.0]
+    z = get_similar(x)
+
+    @test_nowarn z[1]
+
+    x = BigFloat[1.0, 1.0]
+    z = get_similar(x)
+
+    @test_nowarn z[1]  # Without correct similar this would throw UndefRefError
+end