s/auto_ptr/unique_ptr/

The old auto_ptr was used for simple RAII. None of the auto_ptr flaws
were apparent in that context, but given that that class is actively
deprecated and that compilers warn about its use, it's better to switch
to its drop-in replacement.

My reason for not using QScopedPointer is that the C++11 version works
well enough, Okular is being built in C++11 mode anyway, unique_ptr
works on the KF5-minimal-mandated-compilers according to their docs, and
therefore there's no point in using something with a different API
(QScopedPointer) just because its name begins with a Q.

REVIEW: 124027

core/document.cpp

@@ -4363,7 +4363,7 @@ Document::OpenResult Document::openDocumentArchive( const QString & docFile, con
     if ( !mainEntry || !mainEntry->isFile() )
         return OpenError;
 
-    std::auto_ptr< QIODevice > mainEntryDevice( static_cast< const KZipFileEntry * >( mainEntry )->createDevice() );
+    std::unique_ptr< QIODevice > mainEntryDevice( static_cast< const KZipFileEntry * >( mainEntry )->createDevice() );
     QDomDocument doc;
     if ( !doc.setContent( mainEntryDevice.get() ) )
         return OpenError;
@@ -4397,7 +4397,7 @@ Document::OpenResult Document::openDocumentArchive( const QString & docFile, con
     if ( !docEntry || !docEntry->isFile() )
         return OpenError;
 
-    std::auto_ptr< ArchiveData > archiveData( new ArchiveData() );
+    std::unique_ptr< ArchiveData > archiveData( new ArchiveData() );
     const int dotPos = documentFileName.indexOf( '.' );
     if ( dotPos != -1 )
         archiveData->document.setFileTemplate(QDir::tempPath() + QLatin1String("/okular_XXXXXX") + documentFileName.mid(dotPos));
@@ -4406,7 +4406,7 @@ Document::OpenResult Document::openDocumentArchive( const QString & docFile, con
 
     QString tempFileName = archiveData->document.fileName();
     {
-    std::auto_ptr< QIODevice > docEntryDevice( static_cast< const KZipFileEntry * >( docEntry )->createDevice() );
+    std::unique_ptr< QIODevice > docEntryDevice( static_cast< const KZipFileEntry * >( docEntry )->createDevice() );
     copyQIODevice( docEntryDevice.get(), &archiveData->document );
     archiveData->document.close();
     }
@@ -4414,7 +4414,7 @@ Document::OpenResult Document::openDocumentArchive( const QString & docFile, con
     const KArchiveEntry * metadataEntry = mainDir->entry( metadataFileName );
     if ( metadataEntry && metadataEntry->isFile() )
     {
-        std::auto_ptr< QIODevice > metadataEntryDevice( static_cast< const KZipFileEntry * >( metadataEntry )->createDevice() );
+        std::unique_ptr< QIODevice > metadataEntryDevice( static_cast< const KZipFileEntry * >( metadataEntry )->createDevice() );
         archiveData->metadataFile.setFileTemplate(QDir::tempPath() + QLatin1String("/okular_XXXXXX.xml"));
         if ( archiveData->metadataFile.open() )
         {

generators/comicbook/directory.cpp

@@ -58,7 +58,7 @@ QStringList Directory::list() const
 
 QIODevice* Directory::createDevice( const QString &path ) const
 {
-    std::auto_ptr<QFile> file( new QFile( path ) );
+    std::unique_ptr<QFile> file( new QFile( path ) );
     if ( !file->open( QIODevice::ReadOnly ) )
         return 0;
 

generators/comicbook/unrar.cpp

@@ -165,7 +165,7 @@ QIODevice* Unrar::createDevice( const QString &fileName ) const
     if ( !isSuitableVersionAvailable() )
         return 0;
 
-    std::auto_ptr< QFile> file( new QFile( mTempDir->path() + '/' + fileName ) );
+    std::unique_ptr< QFile> file( new QFile( mTempDir->path() + '/' + fileName ) );
     if ( !file->open( QIODevice::ReadOnly ) )
         return 0;
 

part.cpp

@@ -181,7 +181,7 @@ static QString compressedMimeFor( const QString& mime_to_check )
     const QString app_xz( QString::fromLatin1( "application/x-xz" ) );
     if ( compressedMimeMap.isEmpty() )
     {
-        std::auto_ptr< KFilterBase > f;
+        std::unique_ptr< KFilterBase > f;
         compressedMimeMap[ QString::fromLatin1( "image/x-gzeps" ) ] = app_gzip;
         // check we can read bzip2-compressed files
         f.reset( KCompressionDevice::filterForCompressionType( KCompressionDevice::BZip2 ) );

ui/guiutils.cpp

@@ -35,7 +35,7 @@ struct GuiUtilsHelper
     QSvgRenderer* svgStamps();
 
     QList<KIconLoader *> il;
-    std::auto_ptr< QSvgRenderer > svgStampFile;
+    std::unique_ptr< QSvgRenderer > svgStampFile;
 };
 
 QSvgRenderer* GuiUtilsHelper::svgStamps()