Fixed a number of issues (resource leaks, uninitialized members, etc) found by coverity

qtools/qgstring.cpp

@@ -209,7 +209,7 @@ QGString &QGString::operator+=( const QGString &s )
   assert(memSize>=len1+len2+1);
   char *newData = memSize!=m_memSize ? (char*)realloc( m_data, memSize ) : m_data;
   m_memSize = memSize;
-  if (m_data)
+  if (newData)
   {
     m_data = newData;
     memcpy( m_data + len1, s, len2 + 1 );

qtools/qthread.cpp

@@ -52,6 +52,7 @@ QThread::~QThread()
    QMutexLocker locker(&d->mutex);
    if (d->running && !d->finished)
       qWarning("QThread: Destroyed while thread is still running");
+   delete d;
 }
 
 bool QThread::isFinished() const

src/docparser.cpp

@@ -76,7 +76,8 @@ static const char *sectionLevelToName[] =
   "section",
   "subsection",
   "subsubsection",
-  "paragraph"
+  "paragraph",
+  "subparagraph"
 };
 
 //---------------------------------------------------------------------------

src/doxygen.cpp

@@ -2077,18 +2077,15 @@ static void findUsingDeclarations(EntryNav *rootNav)
             usingCd->name().data(),nd?nd->name().data():fd->name().data());
       }
 
-      if (usingCd) // add the class to the correct scope
+      if (nd)
       {
-        if (nd)
-        {
-          //printf("Inside namespace %s\n",nd->name().data());
-          nd->addUsingDeclaration(usingCd);
-        }
-        else if (fd)
-        {
-          //printf("Inside file %s\n",fd->name().data());
-          fd->addUsingDeclaration(usingCd);
-        }
+        //printf("Inside namespace %s\n",nd->name().data());
+        nd->addUsingDeclaration(usingCd);
+      }
+      else if (fd)
+      {
+        //printf("Inside file %s\n",fd->name().data());
+        fd->addUsingDeclaration(usingCd);
       }
     }
 
@@ -4107,8 +4104,12 @@ static QDict<int> *getTemplateArgumentsInName(ArgumentList *templateArguments,co
  */
 static ClassDef *findClassWithinClassContext(Definition *context,ClassDef *cd,const QCString &name)
 {
-  FileDef *fd=cd->getFileDef();
   ClassDef *result=0;
+  if (cd==0)
+  {
+    return result;
+  }
+  FileDef *fd=cd->getFileDef();
   if (context && cd!=context)
   {
     result = getResolvedClass(context,0,name,0,0,TRUE,TRUE);
@@ -4121,7 +4122,7 @@ static ClassDef *findClassWithinClassContext(Definition *context,ClassDef *cd,co
   {
     result = getClass(name);
   }
-  if (result==0 && cd &&
+  if (result==0 &&
       (cd->getLanguage()==SrcLangExt_CSharp || cd->getLanguage()==SrcLangExt_Java) &&
       name.find('<')!=-1)
   {
@@ -4243,13 +4244,10 @@ static void findUsedClassesForClass(EntryNav *rootNav,
                     usedCd->setLanguage(masterCd->getLanguage());
                     Doxygen::hiddenClasses->append(usedName,usedCd);
                   }
-                  if (usedCd)
-                  {
-                    if (isArtificial) usedCd->setArtificial(TRUE);
-                    Debug::print(Debug::Classes,0,"      Adding used class `%s' (1)\n", usedCd->name().data());
-                    instanceCd->addUsedClass(usedCd,md->name(),md->protection());
-                    usedCd->addUsedByClass(instanceCd,md->name(),md->protection());
-                  }
+                  if (isArtificial) usedCd->setArtificial(TRUE);
+                  Debug::print(Debug::Classes,0,"      Adding used class `%s' (1)\n", usedCd->name().data());
+                  instanceCd->addUsedClass(usedCd,md->name(),md->protection());
+                  usedCd->addUsedByClass(instanceCd,md->name(),md->protection());
                 }
               }
             }
@@ -6585,7 +6583,7 @@ static void findMember(EntryNav *rootNav,
               funcType,funcName,funcArgs,exceptions,
               root->protection,root->virt,
               root->stat && !isMemberOf,
-              isMemberOf ? Foreign : isRelated ? Related : Member,
+              isMemberOf ? Foreign : Related,
               mtype,
               (root->tArgLists ? root->tArgLists->getLast() : 0),
               funcArgs.isEmpty() ? 0 : root->argList);
@@ -8062,13 +8060,14 @@ static void generateClassList(ClassSDict &classSDict)
     ClassDef *cd=cli.current();
    
     //printf("cd=%s getOuterScope=%p global=%p\n",cd->name().data(),cd->getOuterScope(),Doxygen::globalScope);
-    if ((cd->getOuterScope()==0 || // <-- should not happen, but can if we read an old tag file
+    if (cd &&
+        (cd->getOuterScope()==0 || // <-- should not happen, but can if we read an old tag file
          cd->getOuterScope()==Doxygen::globalScope // only look at global classes
         ) && !cd->isHidden() && !cd->isEmbeddedInOuterScope()
-       ) 
+       )
     {
-      // skip external references, anonymous compounds and 
-      // template instances 
+      // skip external references, anonymous compounds and
+      // template instances
       if ( cd->isLinkableInProject() && cd->templateMaster()==0)
       {
         msg("Generating docs for compound %s...\n",cd->name().data());
@@ -9003,9 +9002,9 @@ static void generateNamespaceDocs()
 
     // for each class in the namespace...
     ClassSDict::Iterator cli(*nd->getClassSDict());
-    for ( ; cli.current() ; ++cli )
+    ClassDef *cd;
+    for ( ; (cd=cli.current()) ; ++cli )
     {
-      ClassDef *cd=cli.current();
       if ( ( cd->isLinkableInProject() && 
              cd->templateMaster()==0
            ) // skip external references, anonymous compounds and 

src/htmlhelp.cpp

@@ -281,6 +281,7 @@ HtmlHelp::HtmlHelp() : indexFileDict(1009)
 HtmlHelp::~HtmlHelp()
 {
   if (m_fromUtf8!=(void *)(-1))   portable_iconv_close(m_fromUtf8);
+  delete index;
 }
 #if 0
 /*! return a reference to the one and only instance of this class. 

src/index.cpp

@@ -1640,7 +1640,7 @@ static void writeAnnotatedClassList(OutputList &ol)
 
 static QCString letterToLabel(uint startLetter)
 {
-  char s[10];
+  char s[11]; // max 0x12345678 + '\0'
   if (startLetter>0x20 && startLetter<=0x7f) // printable ASCII character
   {
     s[0]=(char)startLetter;

src/msc.cpp

@@ -74,6 +74,7 @@ static bool convertMapFile(FTextStream &t,const char *mapName,const QCString rel
         t << externalRef(relPath,df->ref(),TRUE);
         if (!df->file().isEmpty()) t << df->file() << Doxygen::htmlFileExtension;
         if (!df->anchor().isEmpty()) t << "#" << df->anchor();
+        delete df;
       }
       else
       {

src/pre.l

@@ -207,6 +207,7 @@ class DefineManager
       if (dpf==0)
       {
 	dpf = new DefinesPerFile;
+	m_fileMap.insert(fileName,dpf);
       }
       dpf->addDefine(def);
     }
@@ -223,6 +224,7 @@ class DefineManager
       if (dpf==0)
       {
 	dpf = new DefinesPerFile;
+	m_fileMap.insert(fromFileName,dpf);
       }
       dpf->addInclude(toFileName);
     }
@@ -2283,6 +2285,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
   					}
 <DefName>{ID}/("\\\n")*"("		{ // define with argument
   					  //printf("Define() `%s'\n",yytext);
+					  delete g_argDict;
 					  g_argDict = new QDict<int>(31);
 					  g_argDict->setAutoDelete(TRUE);
 					  g_defArgs = 0; 

src/template.cpp

@@ -1165,7 +1165,7 @@ class FilterAlphaIndex
     }
     static QCString keyToLabel(uint startLetter)
     {
-      char s[10];
+      char s[11]; // 0x12345678 + '\0'
       if (startLetter>0x20 && startLetter<=0x7f) // printable ASCII character
       {
         s[0]=tolower((char)startLetter);
@@ -2403,7 +2403,7 @@ TemplateVariant TemplateContextImpl::get(const QCString &name) const
         warn(m_templateName,m_line,"using . on an object '%s' is not an struct or list",objName.data());
         return TemplateVariant();
       }
-    } while (i!=-1);
+    }
     return v;
   }
 }
@@ -2860,7 +2860,7 @@ class TemplateNodeRange : public TemplateNodeCreator<TemplateNodeRange>
 {
   public:
     TemplateNodeRange(TemplateParser *parser,TemplateNode *parent,int line,const QCString &data)
-      : TemplateNodeCreator<TemplateNodeRange>(parser,parent,line)
+      : TemplateNodeCreator<TemplateNodeRange>(parser,parent,line), m_down(FALSE)
     {
       TRACE(("{TemplateNodeRange(%s)\n",data.data()));
       QCString start,end;
@@ -3030,7 +3030,7 @@ class TemplateNodeFor : public TemplateNodeCreator<TemplateNodeFor>
 {
   public:
     TemplateNodeFor(TemplateParser *parser,TemplateNode *parent,int line,const QCString &data)
-      : TemplateNodeCreator<TemplateNodeFor>(parser,parent,line)
+      : TemplateNodeCreator<TemplateNodeFor>(parser,parent,line), m_reversed(FALSE)
     {
       TRACE(("{TemplateNodeFor(%s)\n",data.data()));
       QCString exprStr;
@@ -3438,7 +3438,7 @@ class TemplateNodeCreate : public TemplateNodeCreator<TemplateNodeCreate>
 {
   public:
     TemplateNodeCreate(TemplateParser *parser,TemplateNode *parent,int line,const QCString &data)
-      : TemplateNodeCreator<TemplateNodeCreate>(parser,parent,line)
+      : TemplateNodeCreator<TemplateNodeCreate>(parser,parent,line), m_templateExpr(0), m_fileExpr(0)
     {
       TRACE(("TemplateNodeCreate(%s)\n",data.data()));
       ExpressionParser ep(parser,line);
@@ -4013,7 +4013,7 @@ class TemplateNodeMarkers : public TemplateNodeCreator<TemplateNodeMarkers>
 {
   public:
     TemplateNodeMarkers(TemplateParser *parser,TemplateNode *parent,int line,const QCString &data)
-      : TemplateNodeCreator<TemplateNodeMarkers>(parser,parent,line)
+      : TemplateNodeCreator<TemplateNodeMarkers>(parser,parent,line), m_listExpr(0), m_patternExpr(0)
     {
       TRACE(("{TemplateNodeMarkers(%s)\n",data.data()));
       int i = data.find(" in ");