ofz#40575 Integer-overflow

Change-Id: I4b6b6f2ba0c4dd013489b334822e6639f265c6b2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/124539
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/emfio/source/reader/mtftools.cxx b/emfio/source/reader/mtftools.cxx
index 4a3242c..b98fa7c 100644
--- a/emfio/source/reader/mtftools.cxx
+++ b/emfio/source/reader/mtftools.cxx
@@ -1686,7 +1686,7 @@ namespace emfio

        if (pDXArry)
        {
            sal_Int32 nSumX = 0, nSumY = 0;
            sal_Int64 nSumX = 0, nSumY = 0;
            for (sal_Int32 i = 0; i < rText.getLength(); i++ )
            {
                nSumX += (*pDXArry)[i];