The <cxxClassDeclarationFileLine> element is defined within <cxxClassAPIItemLocation>. <cxxClassDeclarationFileLine> specifies the line on which the API is declared
The element <cxxClassDeclarationFileLine> is empty but for the required attributes name and value. name is always "lineNumber" and value is the line number.
<cxxClassAPIItemLocation>
<cxxClassDeclarationFile name="filePath" value="D:/include/headerfile.h"/>
<cxxClassDeclarationFileLine name="lineNumber" value="775"/>
<cxxClassDefinitionFile name="filePath" value="D:/include/headerfile.h"/>
<cxxClassDefinitionFileLineStart name="lineNumber" value="765"/>
<cxxClassDefinitionFileLineEnd name="lineNumber" value="787"/>
</cxxClassAPIItemLocation>