From a28d9fe78b68d937f7ed4b53f1ed31fdc55c1c2b Mon Sep 17 00:00:00 2001
From: Michel Juillard <michel@debian.home>
Date: Tue, 7 Apr 2020 12:09:26 +0200
Subject: [PATCH] fix exceptions

---
 src/PolynomialMatrixEquations.jl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/PolynomialMatrixEquations.jl b/src/PolynomialMatrixEquations.jl
index 8bc1897..d2625ad 100644
--- a/src/PolynomialMatrixEquations.jl
+++ b/src/PolynomialMatrixEquations.jl
@@ -1,5 +1,9 @@
 module PolynomialMatrixEquations
 
+struct UnstableSystemException <: Exception end
+struct UndeterminateSystemException <: Exception end
+export UnstableSystemException, UndeterminateSystemException
+
 include("CyclicReduction.jl")
 export CyclicReductionWs, cyclic_reduction!, cyclic_reduction_check
 
-- 
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