From 45bc3e2781acd95c26eed8332b3f6cd186070cf1 Mon Sep 17 00:00:00 2001
From: conrad <conrad@localhost.localdomain>
Date: Fri, 22 Jul 2022 13:14:43 +1000
Subject: [PATCH] ensure sparse matrix arrays are valid

---
 mex_interface/armaMex.hpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/mex_interface/armaMex.hpp b/mex_interface/armaMex.hpp
index d791cd06..032fe3ab 100644
--- a/mex_interface/armaMex.hpp
+++ b/mex_interface/armaMex.hpp
@@ -708,7 +708,9 @@ armaSetSparsePr(mxArray *matlabMatrix, const SpMat<double>& armaMatrix)
   double  *sr  = mxGetPr(matlabMatrix);
   mwIndex *irs = mxGetIr(matlabMatrix);
   mwIndex *jcs = mxGetJc(matlabMatrix);
-    
+  
+  armaMatrix.sync();
+  
   mwSize n_nonzero = armaMatrix.n_nonzero;
   mwSize n_cols    = armaMatrix.n_cols;
 
@@ -732,7 +734,9 @@ armaSetSparsePi(mxArray *matlabMatrix, const SpMat<double>& armaMatrix)
   double  *si  = mxGetPi(matlabMatrix);
   mwIndex *irs = mxGetIr(matlabMatrix);
   mwIndex *jcs = mxGetJc(matlabMatrix);
-    
+  
+  armaMatrix.sync();
+  
   mwSize n_nonzero = armaMatrix.n_nonzero;
   mwSize n_cols    = armaMatrix.n_cols;