Guard against self assignment

1 files changed, 2 insertions, 0 deletions

diff --git a/libopie/pim/opimrecord.cpp b/libopie/pim/opimrecord.cpp
index 9510357..0c9734d 100644
--- a/libopie/pim/opimrecord.cpp
+++ b/libopie/pim/opimrecord.cpp
@@ -1,174 +1,176 @@
 #include <qarray.h>
 
 #include <qpe/categories.h>
 #include <qpe/categoryselect.h>
 
 #include "opimrecord.h"
 
 Qtopia::UidGen OPimRecord::m_uidGen( Qtopia::UidGen::Qtopia );
 
 
 OPimRecord::OPimRecord( int uid )
     : Qtopia::Record() {
 
     m_lastHit = -1;
     setUid( uid );
 }
 OPimRecord::~OPimRecord() {
 }
 OPimRecord::OPimRecord( const OPimRecord& rec )
     : Qtopia::Record( rec )
 {
     (*this) = rec;
 }
 
 OPimRecord &OPimRecord::operator=( const OPimRecord& rec) {
+    if ( this == &rec ) return *this;
+
     Qtopia::Record::operator=( rec );
     m_xrefman = rec.m_xrefman;
     m_lastHit = rec.m_lastHit;
 
     return  *this;
 }
 /*
  * category names
  */
 QStringList OPimRecord::categoryNames( const QString& appname ) const {
     QStringList list;
     QArray<int> cats = categories();
     Categories catDB;
     catDB.load( categoryFileName() );
 
     for (uint i = 0; i < cats.count(); i++ ) {
         list << catDB.label( appname, cats[i] );
     }
 
     return list;
 }
 void OPimRecord::setCategoryNames( const QStringList& ) {
 
 }
 void OPimRecord::addCategoryName( const QString& ) {
     Categories catDB;
     catDB.load( categoryFileName() );
 
 
 }
 bool OPimRecord::isEmpty()const {
     return ( uid() == 0 );
 }
 /*QString OPimRecord::crossToString()const {
     QString str;
     QMap<QString, QArray<int> >::ConstIterator it;
     for (it = m_relations.begin(); it != m_relations.end(); ++it ) {
         QArray<int> id = it.data();
         for ( uint i = 0; i < id.size(); ++i ) {
             str += it.key() + "," + QString::number( i ) + ";";
         }
     }
     str = str.remove( str.length()-1, 1); // strip the ;
     //qWarning("IDS " + str );
 
     return str;
     }*/
 /* if uid = 1 assign a new one */
 void OPimRecord::setUid( int uid ) {
     if ( uid == 1)
         uid = uidGen().generate();
 
     Qtopia::Record::setUid( uid );
 };
 Qtopia::UidGen &OPimRecord::uidGen() {
     return m_uidGen;
 }
 OPimXRefManager &OPimRecord::xrefmanager() {
     return m_xrefman;
 }
 int OPimRecord::rtti(){
     return 0;
 }
 
 /**
  * now let's put our data into the stream
  */
 /*
  * First read UID
  *            Categories
  *            XRef
  */
 bool OPimRecord::loadFromStream( QDataStream& stream ) {
     int Int;
     uint UInt;
     stream >> Int;
     setUid(Int);
 
     /** Categories */
     stream >> UInt;
     QArray<int> array(UInt);
     for (uint i = 0; i < UInt; i++ ) {
         stream >> array[i];
     }
     setCategories( array );
 
     /*
      * now we do the X-Ref stuff
      */
     OPimXRef xref;
     stream >> UInt;
     for ( uint i = 0; i < UInt; i++ ) {
         xref.setPartner( OPimXRef::One, partner( stream ) );
         xref.setPartner( OPimXRef::Two, partner( stream ) );
         m_xrefman.add( xref );
     }
 
     return true;
 }
 bool OPimRecord::saveToStream( QDataStream& stream )const {
     /** UIDs */
 
     stream << uid();
 
     /** Categories  */
     stream << categories().count();
     for ( uint i = 0; i < categories().count(); i++ ) {
         stream << categories()[i];
     }
 
     /*
      * first the XRef count
      * then the xrefs
      */
     stream << m_xrefman.list().count();
     for ( OPimXRef::ValueList::ConstIterator it = m_xrefman.list().begin();
           it != m_xrefman.list().end(); ++it ) {
         flush( (*it).partner( OPimXRef::One),  stream  );
         flush( (*it).partner( OPimXRef::Two),  stream  );
     }
     return true;
 }
 void OPimRecord::flush( const OPimXRefPartner& par, QDataStream& str ) const{
     str << par.service();
     str << par.uid();
     str << par.field();
 }
 OPimXRefPartner OPimRecord::partner( QDataStream& stream ) {
     OPimXRefPartner par;
     QString str;
     int i;
 
     stream >> str;
     par.setService( str );
 
     stream >> i;
     par.setUid( i );
 
     stream >> i ;
     par.setField( i );
 
     return par;
 }
 void OPimRecord::setLastHitField( int lastHit )const {
     m_lastHit = lastHit;
 }
 int OPimRecord::lastHitField()const{
     return m_lastHit;
 }