From 14bba2f22b0e787ae106402eb84114f9907e8798 Mon Sep 17 00:00:00 2001
From: Chris Elrod <elrodc@gmail.com>
Date: Mon, 20 Jul 2020 18:59:03 -0400
Subject: [PATCH] Added maximum(abs, x).

---
 src/miscellaneous.jl | 9 +++++++++
 test/misc.jl         | 9 +++++++++
 test/runtests.jl     | 1 +
 3 files changed, 19 insertions(+)
 create mode 100644 src/miscellaneous.jl
 create mode 100644 test/misc.jl

diff --git a/src/miscellaneous.jl b/src/miscellaneous.jl
new file mode 100644
index 0000000..f38b940
--- /dev/null
+++ b/src/miscellaneous.jl
@@ -0,0 +1,9 @@
+
+function maximum(::typeof(abs), A::AbstractStrideArray{S,T}) where {S,T}
+    s = typemin(T)
+    @avx for i ∈ eachindex(A)
+        s = max(s, abs(A[i]))
+    end
+    s
+end
+
diff --git a/test/misc.jl b/test/misc.jl
new file mode 100644
index 0000000..1bb9a7b
--- /dev/null
+++ b/test/misc.jl
@@ -0,0 +1,9 @@
+
+
+@testset "Miscellaneous" begin
+    x = @FixedSize rand(127);
+    @test maximum(abs, x) == maximum(abs, Array(x))
+    y = @FixedSize rand(3);
+    @test maximum(abs, y) == maximum(abs, Array(y))
+end
+
diff --git a/test/runtests.jl b/test/runtests.jl
index 91a588c..3f02f24 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -11,4 +11,5 @@ using Test
     @test isempty(detect_unbound_args(PaddedMatrices))
     @time include("matmul_tests.jl")
     @time include("broadcast_tests.jl")
+    @time include("misc.jl")
 end