loplugin:useuniqueptr in GIFLZWCompressor

Change-Id: Iffc9cab9717691818bdc49c8a97f0dff9461340d
Reviewed-on: https://gerrit.libreoffice.org/53871
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

2 files changed, 9 insertions, 10 deletions

diff --git a/filter/source/graphicfilter/egif/giflzwc.cxx b/filter/source/graphicfilter/egif/giflzwc.cxx
index a660007c7a36..5a4601d38c9e 100644
--- a/filter/source/graphicfilter/egif/giflzwc.cxx
+++ b/filter/source/graphicfilter/egif/giflzwc.cxx
@@ -139,8 +139,8 @@ void GIFLZWCompressor::StartCompression( SvStream& rGIF, sal_uInt16 nPixelSize )
         nTableSize=nEOICode+1;
         nCodeSize=nDataSize+1;
 
-        pIDOS=new GIFImageDataOutputStream(rGIF,static_cast<sal_uInt8>(nDataSize));
-        pTable=new GIFLZWCTreeNode[4096];
+        pIDOS.reset(new GIFImageDataOutputStream(rGIF,static_cast<sal_uInt8>(nDataSize)));
+        pTable.reset(new GIFLZWCTreeNode[4096]);
 
         for (i=0; i<4096; i++)
         {
@@ -163,7 +163,7 @@ void GIFLZWCompressor::Compress(sal_uInt8* pSrc, sal_uInt32 nSize)
 
         if( !pPrefix && nSize )
         {
-            pPrefix=pTable+(*pSrc++);
+            pPrefix=&pTable[*pSrc++];
             nSize--;
         }
 
@@ -198,14 +198,14 @@ void GIFLZWCompressor::Compress(sal_uInt8* pSrc, sal_uInt32 nSize)
                     if(nTableSize==static_cast<sal_uInt16>(1<<nCodeSize))
                         nCodeSize++;
 
-                    p=pTable+(nTableSize++);
+                    p=&pTable[nTableSize++];
                     p->pBrother=pPrefix->pFirstChild;
                     pPrefix->pFirstChild=p;
                     p->nValue=nV;
                     p->pFirstChild=nullptr;
                 }
 
-                pPrefix=pTable+nV;
+                pPrefix=&pTable[nV];
             }
         }
     }
@@ -219,9 +219,8 @@ void GIFLZWCompressor::EndCompression()
             pIDOS->WriteBits(pPrefix->nCode,nCodeSize);
 
         pIDOS->WriteBits( nEOICode,nCodeSize );
-        delete[] pTable;
-        delete pIDOS;
-        pIDOS=nullptr;
+        pTable.reset();
+        pIDOS.reset();
     }
 }
 
diff --git a/filter/source/graphicfilter/egif/giflzwc.hxx b/filter/source/graphicfilter/egif/giflzwc.hxx
index 0c51ff55d7b8..018a45812646 100644
--- a/filter/source/graphicfilter/egif/giflzwc.hxx
+++ b/filter/source/graphicfilter/egif/giflzwc.hxx
@@ -31,8 +31,8 @@ class GIFLZWCompressor
 {
 private:
 
-    GIFImageDataOutputStream*   pIDOS;
-    GIFLZWCTreeNode*            pTable;
+    std::unique_ptr<GIFImageDataOutputStream> pIDOS;
+    std::unique_ptr<GIFLZWCTreeNode[]> pTable;
     GIFLZWCTreeNode*            pPrefix;
     sal_uInt16                  nDataSize;
     sal_uInt16                  nClearCode;