From c14aeab112b0821bf130aef91cbee8be82b277e8 Mon Sep 17 00:00:00 2001
From: Will Kearney <wkearn@gmail.com>
Date: Sun, 12 Oct 2014 21:44:56 -0400
Subject: [PATCH] Fix bug in issym(A::BitMatrix)

numnz -> countnz

backport of 7ba14fe8dc25286df86c03c10f5d3d9260558254

Add issym test for bitarrays

backport of 85b015f8dfc089698db3904a89a25b14d49552f7
---
 base/linalg/bitarray.jl | 2 +-
 test/bitarray.jl        | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/base/linalg/bitarray.jl b/base/linalg/bitarray.jl
index 4b023ce02e0fb..5e9b70ee89fd9 100644
--- a/base/linalg/bitarray.jl
+++ b/base/linalg/bitarray.jl
@@ -132,7 +132,7 @@ end
 
 ## Structure query functions
 
-issym(A::BitMatrix) = size(A, 1)==size(A, 2) && numnz(A - A.')==0
+issym(A::BitMatrix) = size(A, 1)==size(A, 2) && countnz(A - A.')==0
 ishermitian(A::BitMatrix) = issym(A)
 
 function nonzero_chunks(chunks::Vector{Uint64}, pos0::Int, pos1::Int)
diff --git a/test/bitarray.jl b/test/bitarray.jl
index c7dd7125474c0..c00df8565e26a 100644
--- a/test/bitarray.jl
+++ b/test/bitarray.jl
@@ -975,6 +975,10 @@ b1 = triu(randbool(n1, n2))
 b1 = triu(randbool(n2, n1))
 @check_bit_operation istriu(b1) Bool
 
+b1 = randbool(n1,n1)
+b1 |= b1.'
+@check_bit_operation issym(b1) Bool
+
 b1 = randbool(n1)
 b2 = randbool(n2)
 @check_bit_operation kron(b1, b2) BitVector