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Join Date: Feb 2008
Location: Canada
Posts: 20
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Newbie Poster
passing an array of structs from a member function Hello, I am a fairly inexperienced programmer, and I am confusing myself.
I want to have a member function or a different class return an array of structures. I've read that I have to do this by reference, but I can seem to get it right. Can someone help?
The header file has the line:
The structure is declared(?) as follows:
This is the member function of RoboDOM, which will be called by the class named compare. I am using Qt4, and I think the xml traversing is alright, if not I can probably figure that part out myself.
And at last, it is here called by compare. I assume this is where I'm going wrong, or maybe in what I am returning. I think I have a lot of trouble with the syntax of pointers because maybe I don't understand them very well.
Eitherway, the error I am currently getting is:
Thank you very much in advanced!
I want to have a member function or a different class return an array of structures. I've read that I have to do this by reference, but I can seem to get it right. Can someone help?
The header file has the line:
static struct Comm* listCommands(QString directory, QString docName); \\comm is the name of the structure
The structure is declared(?) as follows:
struct Comm //command structure
{
QString cLabel;
};struct Comm* RoboDOM::listCommands(QString directory, QString docName)
{
QStringList transList;
QDomDocument doc = openDoc(directory, docName);
QDomElement docElem = doc.documentElement();
QDomNode n = docElem.firstChild();
QDomNodeList tagList = doc.elementsByTagName("commands");
n = tagList.item(0);
QDomNodeList commandList = n.childNodes;
Comm *commands[50]; //Make an array of structs
for(int i = 0; i<commandList.count();i++)
{
n = commandList.item(i);
e = n.toElement();
QStringList newone;
newone << "Command"<<i;
Comm newone.join(" ") =
{
nameCode(e.tagName())
}
commands[i] =newone.join(" ");
}
return commands;
}Comm *listofcommands[50] = RoboDOM::listCommands(directory, protocol1); QString Listy = listofcommands[0].cLabel; type1->setText(Listy);
Eitherway, the error I am currently getting is:
compare.cpp:98: error: invalid initializer compare.cpp:99: error: `cLabel' has not been declared compare.cpp:99: error: request for member of non-aggregate type before ';' token
Thank you very much in advanced!
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Join Date: Feb 2008
Location: Canada
Posts: 20
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Newbie Poster
My bad, returning an array of structs
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Join Date: Apr 2006
Location: Canada
Posts: 4,500
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Re: passing an array of structs from a member function Comm *listofcommands[50] = RoboDOM::listCommands(directory, protocol1);QString Listy = listofcommands[0]->cLabel; tuxation.com - Linux articles, tutorials, and discussions
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