memory errors

[Thomasisko]

Hallo everybody. I use TinyXML Parser to work with a small XML database. I use very simple schema of XML file:

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<diatoms>
<circle/>
<unknown/>
</diatoms>
</xml>

Now I'd like to write some rows in both of elements circle and unknown. Every element contains name("file"), 25 double values and 1 string attribute. I use this source code to write a row:

TiXmlElement* child = docHandle.FirstChild("diatoms").Element();
TiXmlNode* shapeNode = child->FirstChild("circle");
    TiXmlElement *file = shapeNode->FirstChildElement("file");
TiXmlElement tempElement("file");
tempElement.SetAttribute("name", "aaa");
tempElement.SetDoubleAttribute("ratio", fRatio);
       
for(int i = 0; i<24; i++)
{
  char strAttrName[20];
  //.. put some data in the strAttrName
  tempElement.SetDoubleAttribute(strAttrName,0.2);
}

shapeNode->InsertEndChild(tempElement);
xml.SaveFile();

I link TinyXML source files into my Borland C++ project. After writing about 50 rows into XML, it always fails with an error message referring to memory problems in method emtpy_it() from the file tinystr.h. The "possibly wrong" row is if(cstring) delete []cstring; I have to use the method SaveFile after each written row. Maybe that causes that error. If i comment the row xml.SaveFile(), no data will be written(that's clear), but I don't become the error message.

Thanks for your advices

Tomas

[Andrew Walton]

Well, I'm not too familiar with TinyXML (just recently started developing with it), but you seem to have a language conflict;

You say you are using Borland C++ (which I have never worked with) but you are using the C-style access. Any reason for this? Perhaps you can switch to the STL version?

I would try enabling it in the project, and rebuilding it to see if the error still presents itself.

Hope this helps.
Andrew