coverity#1426873 Unintended sign extension

and a bunch of others

Change-Id: I110545b74bfc71b17e2e10edc95bc4bb5aa5651c
Reviewed-on: https://gerrit.libreoffice.org/46957Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

starmath/source/node.cxx

@@ -2204,17 +2204,17 @@ sal_Unicode SmTextNode::ConvertSymbolToUnicode(sal_Unicode nIn)
 void SmMatrixNode::CreateTextFromNode(OUString &rText)
 {
     rText += "matrix {";
-    for (sal_uInt16 i = 0;  i < mnNumRows; i++)
+    for (size_t i = 0;  i < mnNumRows; ++i)
     {
-        for (sal_uInt16 j = 0;  j < mnNumCols; j++)
+        for (size_t j = 0;  j < mnNumCols; ++j)
         {
             SmNode *pNode = GetSubNode(i * mnNumCols + j);
             if (pNode)
                 pNode->CreateTextFromNode(rText);
-            if (j != mnNumCols-1)
+            if (j != mnNumCols - 1U)
                 rText += "# ";
         }
-        if (i != mnNumRows-1)
+        if (i != mnNumRows - 1U)
             rText += "## ";
     }
     rText = comphelper::string::stripEnd(rText, ' ');

starmath/source/ooxmlexport.cxx

@@ -437,10 +437,10 @@ void SmOoxmlExport::HandleSubSupScriptInternal( const SmSubSupNode* pNode, int n
 void SmOoxmlExport::HandleMatrix( const SmMatrixNode* pNode, int nLevel )
 {
     m_pSerializer->startElementNS( XML_m, XML_m, FSEND );
-    for( int row = 0; row < pNode->GetNumRows(); ++row )
+    for (size_t row = 0; row < pNode->GetNumRows(); ++row)
     {
         m_pSerializer->startElementNS( XML_m, XML_mr, FSEND );
-        for( int col = 0; col < pNode->GetNumCols(); ++col )
+        for (size_t col = 0; col < pNode->GetNumCols(); ++col)
         {
             m_pSerializer->startElementNS( XML_m, XML_e, FSEND );
             if( const SmNode* node = pNode->GetSubNode( row * pNode->GetNumCols() + col ))

starmath/source/rtfexport.cxx

@@ -386,10 +386,10 @@ void SmRtfExport::HandleSubSupScriptInternal(const SmSubSupNode* pNode, int nLev
 void SmRtfExport::HandleMatrix(const SmMatrixNode* pNode, int nLevel)
 {
     m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MM " ");
-    for (int row = 0; row < pNode->GetNumRows(); ++row)
+    for (size_t row = 0; row < pNode->GetNumRows(); ++row)
     {
         m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_MMR " ");
-        for (int col = 0; col < pNode->GetNumCols(); ++col)
+        for (size_t col = 0; col < pNode->GetNumCols(); ++col)
         {
             m_pBuffer->append("{" LO_STRING_SVTOOLS_RTF_ME " ");
             if (const SmNode* node = pNode->GetSubNode(row * pNode->GetNumCols() + col))

starmath/source/visitors.cxx

@@ -1063,13 +1063,15 @@ void SmCaretPosGraphBuildingVisitor::Visit( SmMatrixNode* pNode )
     SmCaretPosGraphEntry *left  = mpRightMost,
                          *right = mpGraph->Add( SmCaretPos( pNode, 1 ) );
 
-    for ( sal_uInt16 i = 0;  i < pNode->GetNumRows( ); i++ ) {
+    for (size_t i = 0;  i < pNode->GetNumRows(); ++i)
+    {
         SmCaretPosGraphEntry* r = left;
-        for ( sal_uInt16 j = 0;  j < pNode->GetNumCols( ); j++ ){
+        for (size_t j = 0;  j < pNode->GetNumCols(); ++j)
+        {
             SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j );
 
             mpRightMost = mpGraph->Add( SmCaretPos( pSubNode, 0 ), r );
-            if( j != 0 || ( pNode->GetNumRows( ) - 1 ) / 2 == i )
+            if( j != 0 || ( pNode->GetNumRows() - 1U ) / 2 == i )
                 r->SetRight( mpRightMost );
 
             pSubNode->Accept( this );
@@ -1077,7 +1079,7 @@ void SmCaretPosGraphBuildingVisitor::Visit( SmMatrixNode* pNode )
             r = mpRightMost;
         }
         mpRightMost->SetRight( right );
-        if( ( pNode->GetNumRows( ) - 1 ) / 2 == i )
+        if( ( pNode->GetNumRows() - 1U ) / 2 == i )
             right->SetLeft( mpRightMost );
     }
 
@@ -2281,17 +2283,19 @@ void SmNodeToTextVisitor::Visit( SmSubSupNode* pNode )
 void SmNodeToTextVisitor::Visit( SmMatrixNode* pNode )
 {
     Append( "matrix{" );
-    for ( sal_uInt16 i = 0; i < pNode->GetNumRows( ); i++ ) {
-        for ( sal_uInt16 j = 0; j < pNode->GetNumCols( ); j++ ) {
+    for (size_t i = 0; i < pNode->GetNumRows(); ++i)
+    {
+        for (size_t j = 0; j < pNode->GetNumCols( ); ++j)
+        {
             SmNode* pSubNode = pNode->GetSubNode( i * pNode->GetNumCols( ) + j );
             Separate( );
             pSubNode->Accept( this );
             Separate( );
-            if( j != pNode->GetNumCols( ) - 1 )
+            if (j != pNode->GetNumCols() - 1U)
                 Append( "#" );
         }
         Separate( );
-        if( i != pNode->GetNumRows( ) - 1 )
+        if (i != pNode->GetNumRows() - 1U)
             Append( "##" );
     }
     Append( "} " );