Add inverse of reverse (#33)

JuliaMath · Jul 10, 2023 · b1195de · b1195de · oschulz · Jul 10, 2023
1 parent 07ac8c9
commit b1195de
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Showing 3 changed files with 4 additions and 1 deletion.
diff --git a/Project.toml b/Project.toml
@@ -1,6 +1,6 @@
 name = "InverseFunctions"
 uuid = "3587e190-3f89-42d0-90ee-14403ec27112"
-version = "0.1.10"
+version = "0.1.11"
 
 [deps]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

diff --git a/src/inverse.jl b/src/inverse.jl
@@ -160,3 +160,5 @@ inverse(f::Base.Fix2{typeof(divrem)}) = Base.Fix2(invdivrem, f.x)
 inverse(f::Base.Fix2{typeof(invdivrem)}) = Base.Fix2(divrem, f.x)
 inverse(f::Base.Fix2{typeof(fldmod)}) = Base.Fix2(invfldmod, f.x)
 inverse(f::Base.Fix2{typeof(invfldmod)}) = Base.Fix2(fldmod, f.x)
+
+inverse(::typeof(reverse)) = reverse
diff --git a/test/test_inverse.jl b/test/test_inverse.jl
@@ -60,6 +60,7 @@ InverseFunctions.inverse(f::Bar) = Bar(inv(f.A))
         InverseFunctions.test_inverse(f, -x)
     end
     InverseFunctions.test_inverse(conj, 2 - 3im)
+    InverseFunctions.test_inverse(reverse, [10, 20, 30])
 
     x = rand(0:10)
     for f in (Base.Fix2(divrem, rand([-5:-1; 1:5])), Base.Fix2(fldmod, rand([-5:-1; 1:5])), Base.Fix2(divrem, 0.123), Base.Fix2(fldmod, 0.123))