Refactoring: Avoid creating QCString from 0 pointer.

To prepare to migrate from QCString to std::string, 0 pointer initialization
should be avoided as this is undefined behavior for std::string.

Author: doxygen

addon/doxyapp/doxyapp.cpp

@@ -129,11 +129,11 @@ static void findXRefSymbols(FileDef *fd)
 
   // parse the source code
   intf->parseCode(xrefList,
-                0,
+                QCString(),
                 fileToString(fd->absFilePath()),
                 lang,
                 FALSE,
-                0,
+                QCString(),
                 fd);
 }
 

addon/doxyparse/doxyparse.cpp

@@ -104,7 +104,7 @@ static void findXRefSymbols(FileDef *fd)
   parseList.add(OutputCodeDeferExtension(&parse));
 
   // parse the source code
-  intf->parseCode(parseList, 0, fileToString(fd->absFilePath()), lang, FALSE, 0, fd);
+  intf->parseCode(parseList, QCString(), fileToString(fd->absFilePath()), lang, FALSE, QCString(), fd);
 }
 
 static bool ignoreStaticExternalCall(const MemberDef *context, const MemberDef *md) {

src/configimpl.l

@@ -674,8 +674,8 @@ static QCString configStringRecode(
 {
   if (inputEncoding.isEmpty() || outputEncoding.isEmpty() || inputEncoding==outputEncoding) return str;
   size_t inputSize=str.length();
-  size_t outputSize=inputSize*4+1;
-  QCString output(outputSize);
+  size_t outputSize=inputSize*4;
+  QCString output(outputSize, QCString::ExplicitSize);
   void *cd = portable_iconv_open(outputEncoding.data(),inputEncoding.data());
   if (cd==reinterpret_cast<void *>(-1))
   {

src/dia.cpp

@@ -68,7 +68,7 @@ void writeDiaGraphFromFile(const QCString &inFile,const QCString &outDir,
   }
   if ( (format==DIA_EPS) && (Config_getBool(USE_PDFLATEX)) )
   {
-    QCString epstopdfArgs(maxCmdLine);
+    QCString epstopdfArgs(maxCmdLine, QCString::ExplicitSize);
     epstopdfArgs.sprintf("\"%s.eps\" --outfile=\"%s.pdf\"",
                          qPrint(outFile),qPrint(outFile));
     if (Portable::system("epstopdf",epstopdfArgs)!=0)

src/diagram.cpp

@@ -1354,7 +1354,7 @@ void ClassDiagram::writeFigure(TextStream &output,const QCString &path,
 
   if (Config_getBool(USE_PDFLATEX))
   {
-    QCString epstopdfArgs(4096);
+    QCString epstopdfArgs(4096, QCString::ExplicitSize);
     epstopdfArgs.sprintf("\"%s.eps\" --outfile=\"%s.pdf\"",
                    qPrint(epsBaseName),qPrint(epsBaseName));
     //printf("Converting eps using '%s'\n",qPrint(epstopdfArgs));

src/docbookvisitor.cpp

@@ -359,7 +359,7 @@ DB_VIS_C
     case DocVerbatim::Dot:
       {
         static int dotindex = 1;
-        QCString baseName(4096);
+        QCString baseName(4096, QCString::ExplicitSize);
         QCString name;
         QCString stext = s.text();
         m_t << "<para>\n";
@@ -384,7 +384,7 @@ DB_VIS_C
     case DocVerbatim::Msc:
       {
         static int mscindex = 1;
-        QCString baseName(4096);
+        QCString baseName(4096, QCString::ExplicitSize);
         QCString name;
         QCString stext = s.text();
         m_t << "<para>\n";

src/docparser.cpp

@@ -176,7 +176,7 @@ QCString DocParser::findAndCopyImage(const QCString &fileName, DocImage::Type ty
     { // we have an .eps image in pdflatex mode => convert it to a pdf.
       QCString outputDir = Config_getString(LATEX_OUTPUT);
       QCString baseName  = fd->name().left(fd->name().length()-4);
-      QCString epstopdfArgs(4096);
+      QCString epstopdfArgs(4096, QCString::ExplicitSize);
       epstopdfArgs.sprintf("\"%s/%s.eps\" --outfile=\"%s/%s.pdf\"",
                            qPrint(outputDir), qPrint(baseName),
 			   qPrint(outputDir), qPrint(baseName));

src/doxygen.cpp

@@ -539,7 +539,7 @@ static void buildFileList(const Entry *root)
     }
     else
     {
-      QCString text(4096);
+      QCString text(4096, QCString::ExplicitSize);
       text.sprintf("the name '%s' supplied as "
           "the argument in the \\file statement ",
           qPrint(root->name));

src/htmldocvisitor.cpp

@@ -601,7 +601,7 @@ void HtmlDocVisitor::operator()(const DocVerbatim &s)
     case DocVerbatim::Dot:
       {
         static int dotindex = 1;
-        QCString fileName(4096);
+        QCString fileName(4096, QCString::ExplicitSize);
 
         forceEndParagraph(s);
         fileName.sprintf("%s%d%s",
@@ -635,7 +635,7 @@ void HtmlDocVisitor::operator()(const DocVerbatim &s)
         forceEndParagraph(s);
 
         static int mscindex = 1;
-        QCString baseName(4096);
+        QCString baseName(4096, QCString::ExplicitSize);
 
         baseName.sprintf("%s%d",
             qPrint(Config_getString(HTML_OUTPUT)+"/inline_mscgraph_"),

src/htmlhelp.cpp

@@ -69,8 +69,8 @@ class HtmlHelpRecoder
     QCString recode(const QCString &s)
     {
       size_t iSize     = s.length();
-      size_t oSize     = iSize*4+1;
-      QCString output(oSize);
+      size_t oSize     = iSize*4;
+      QCString output(oSize, QCString::ExplicitSize);
       size_t iLeft     = iSize;
       size_t oLeft     = oSize;
       const char *iPtr = s.data();