From cca28734e39c041112b73314fbd0191dba39362b Mon Sep 17 00:00:00 2001
From: luukkainen <luukkainen@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Fri, 7 Sep 2012 10:56:54 +0000
Subject: [PATCH] using long to calculate offsets.

refs #3692

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@25687 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../modelica/reader/MatFileReader.java        | 20 ++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/org.simantics.modelica/src/org/simantics/modelica/reader/MatFileReader.java b/org.simantics.modelica/src/org/simantics/modelica/reader/MatFileReader.java
index 85074f8f..786faae1 100644
--- a/org.simantics.modelica/src/org/simantics/modelica/reader/MatFileReader.java
+++ b/org.simantics.modelica/src/org/simantics/modelica/reader/MatFileReader.java
@@ -25,8 +25,8 @@ public class MatFileReader implements ResultFileReader {
 	private Map<String, Integer> indices = new HashMap<String, Integer>();
 	
 	
-	int readBytes = 0; // tracking read data
-	int dataMark = 0;  // mark for actual data
+	long readBytes = 0; // tracking read data
+	long dataMark = 0;  // mark for actual data
 	
 	IntMatrix info;
 	int[] infoData;
@@ -345,11 +345,11 @@ public class MatFileReader implements ResultFileReader {
 		int rows = header.rows;
 		double[] v = new double[count];
 		int sc = infoData[row * 4 + 1];
-		int c = sc > 0 ? sc-1 : -sc-1;
+		long c = sc > 0 ? sc-1 : -sc-1;
 		
 
 
-    	skip((c+start*rows) * 8, in);
+    	skip((c+((long)start*(long)rows)) * 8L, in);
     	for (int j = 0; j < v.length; ++j) {
     		
     		double d = getDouble(in);
@@ -413,7 +413,7 @@ public class MatFileReader implements ResultFileReader {
 		
 		
 
-    	skip(c[0] * 8, in);
+    	skip((long)c[0] * 8L, in);
     	for (int j = 0; j < size; ++j) {
     		for (int index = 0; index < sortedRows.size(); index++) {
     				
@@ -532,8 +532,10 @@ public class MatFileReader implements ResultFileReader {
 	
 		
 		
-		
-		skip((start*rows) * 8, in);
+		long s = start;
+		s *= (long)rows;
+		s *= 8L;
+		skip(s, in);
     	skip(c[0] * 8, in);
     	for (int j = 0; j < count; ++j) {
     		for (int index = 0; index < sortedRows.size(); index++) {
@@ -583,8 +585,8 @@ public class MatFileReader implements ResultFileReader {
     	
     	return vs;
     }
-    private void skip(int skipBytes, InputStream in) throws IOException {
-    	int skip = 0; 
+    private void skip(long skipBytes, InputStream in) throws IOException {
+    	long skip = 0; 
     	while (skip < skipBytes) {
     		skip += in.skip(skipBytes-skip);
     	}
-- 
2.47.1