loplugin:useuniqueptr in TokenPool

Change-Id: I25ff554e1dae45ff62bb3f036590a57a79d54b28
Reviewed-on: https://gerrit.libreoffice.org/57296
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sc/source/filter/excel/tokstack.cxx

@@ -61,7 +61,7 @@ TokenPool::TokenPool( svl::SharedStringPool& rSPool ) :
     ppP_Matrix.reset( new ScMatrix*[ nP_Matrix ] );
     memset( ppP_Matrix.get(), 0, sizeof( ScMatrix* ) * nP_Matrix );
 
-    pScToken = new ScTokenArray;
+    pScToken.reset(new ScTokenArray);
 
     Reset();
 }
@@ -69,8 +69,6 @@ TokenPool::TokenPool( svl::SharedStringPool& rSPool ) :
 TokenPool::~TokenPool()
 {
     ClearMatrix();
-
-    delete pScToken;
 }
 
 /** Returns the new number of elements, or 0 if overflow. */

sc/source/filter/inc/tokstack.hxx

@@ -211,7 +211,7 @@ private:
 #ifdef DBG_UTIL
         sal_uInt16                      m_nRek; // recursion counter
 #endif
-        ScTokenArray*               pScToken;   // Token array
+        std::unique_ptr<ScTokenArray>   pScToken;   // Token array
 
         bool                        GrowTripel( sal_uInt16 nByMin );
         bool                        GrowId();
@@ -426,7 +426,7 @@ const inline ScTokenArray* TokenPool::operator []( const TokenId& rId )
         GetElement( static_cast<sal_uInt16>(rId) - 1 );
     }
 
-    return pScToken;
+    return pScToken.get();
 }