Program crashes

[Fallen_]

man i already made it to get the text, now when i do something like this:

tabs->addTab(new Channel(this, QString(buffer), socket, ""), QString(buffer));

tabs->addTab(new Channel(this, QString(buffer), socket, ""), QString(buffer));

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it works but i need it to append a text in the text edit of the channel, when i call printText (from the channel class) from another function it doesnt do anything:

Channel *chan = new Channel(this, channel.c_str(), socket, tmp);
			chan->printText(tmp);

Channel *chan = new Channel(this, channel.c_str(), socket, tmp);
			chan->printText(tmp);

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any ideas?

[wysota]

man i already made it to get the text,

I'm aware of it, the point is you are doing it with a C api that is cumbersome and error prone.

it works but i need it to append a text in the text edit of the channel, when i call printText (from the channel class) from another function it doesnt do anything

I have no idea what you mean. What is printText(), what other function and what was it supposed to do?

[Fallen_]

its to append a text in the "read" text edit

[tbscope]

If you have still problems with the crash, put your code into a zip file and attach it to your post and I'll see what the problem is.

[Fallen_]

I'm aware of it, the point is you are doing it with a C api that is cumbersome and error prone.


I have no idea what you mean. What is printText(), what other function and what was it supposed to do?

Well, the printText is a function in the "Channel" class when calling it from the "MainWindow" class it doesnt print text in the "read" textEdit, heres what printText supposed to do:

void Channel::printText(const QString& text)
{
	read->append(text);
}

void Channel::printText(const QString& text)
{
	read->append(text);
}

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[wysota]

And how do you call it from MainWindow?

[Fallen_]

Channel* chan = new Channel(this, channel.c_str(), socket);
chan->printText(tmp);

Channel* chan = new Channel(this, channel.c_str(), socket);
chan->printText(tmp);

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[Zlatomir]

I guess that's because you create that C-style string pointer, if you want to create a QString from a std::string don't use the .c_str() method, use the static member function of QString fromStdString() (this create a copy of the string)

It has been said: it's better if you use QString instead std::string (and C-style strings)

[wysota]

Channel* chan = new Channel(this, channel.c_str(), socket);
chan->printText(tmp);

Channel* chan = new Channel(this, channel.c_str(), socket);
chan->printText(tmp);

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And the program runs but the text is not printed? What is the content of "tmp" at this moment?

[Fallen_]

And the program runs but the text is not printed? What is the content of "tmp" at this moment?

tmp is a char array with the received messages from the socket and ye it doesnt print the text.

I guess that's because you create that C-style string pointer, if you want to create a QString from a std::string don't use the .c_str() method, use the static member function of QString fromStdString() (this create a copy of the string)

It has been said: it's better if you use QString instead std::string (and C-style strings)

nope still doesnt work

[wysota]

tmp is a char array with the received messages from the socket and ye it doesnt print the text.

I'm asking what it contains - literally. Please print it to your console, don't assume you know what's in there.

[Fallen_]

I'm asking what it contains - literally. Please print it to your console, don't assume you know what's in there.

thats what written in there:

:stockholm.se.quakenet.org 366 Fallen_ #Fallen :End of /NAMES list.
 
[00:45:51] Fallen_ has joined #Fallen

:stockholm.se.quakenet.org 366 Fallen_ #Fallen :End of /NAMES list.

[00:45:51] Fallen_ has joined #Fallen

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[wysota]

And how did you print that to the console?

[Fallen_]

using qDebug()?

[wysota]

Show us the statement please. With a couple of surrounding lines.