PVS-Studio warning V668 for TinyXML

void TiXmlElement::SetAttribute(
  const char * cname, const char * cvalue )
{
  ....
  TiXmlAttribute* attrib = new TiXmlAttribute( cname, cvalue );
  if ( attrib )
  {
    attributeSet.Add( attrib );
  }
  else
  {
    TiXmlDocument* document = GetDocument();
    if ( document ) document->SetError(
      TIXML_ERROR_OUT_OF_MEMORY, 0, 0, TIXML_ENCODING_UNKNOWN );
  }
  ....
}

This suspicious code was found in TinyXML project by PVS-Studio static code analyzer.
Warning message is:
V668 There is no sense in testing the 'attrib' pointer against null, as the memory was allocated using the 'new' operator. The exception will be generated in the case of memory allocation error. oics tinyxml.cpp 735

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