From 157764dbef39bf2f516fe98ef5f8efcbf2d3782a Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 2 Jun 2019 14:39:58 +0300
Subject: [PATCH] Use numeric_limits in Matrix test cases

---
 tests/matrix.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/matrix.cpp b/tests/matrix.cpp
index 5b303db..1b01cbc 100644
--- a/tests/matrix.cpp
+++ b/tests/matrix.cpp
@@ -1,7 +1,9 @@
+#include <limits>
 #include <msp/linal/matrix.h>
 #include <msp/linal/squarematrix.h>
 #include <msp/test/test.h>
 
+using namespace std;
 using namespace Msp;
 
 class MatrixTests: public Test::RegisteredTest<MatrixTests>
@@ -42,9 +44,10 @@ void MatrixTests::multiply()
 template<typename T, unsigned N>
 bool is_identity(const LinAl::Matrix<T, N, N> &m)
 {
+	static const T limit = numeric_limits<T>::epsilon()*4;
 	for(unsigned i=0; i<N; ++i)
 		for(unsigned j=0; j<N; ++j)
-			if(abs(T(i==j)-m(i, j))>1e-10)
+			if(abs(T(i==j)-m(i, j))>limit)
 				return false;
 	return true;
 }
-- 
2.43.0