How to Handle new Qt?

Dear Qtians!
I have one question about new.

Code:

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//UI_DLGTEXTSCROLLER_H
QPushButton *pbOk;
void setupUi(QDialog *dlgTextScroller)
{
.....
....
pbOk = new QPushButton(dlgTextScroller);
pbOk->setObjectName(QString::fromUtf8("pbOk"));
pbOk->setGeometry(QRect(293, 197, 154, 27));
..........
.........
}

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How a way pbOk handle error when bad allocation exists due to some reason.
I am not seeing any try{ }catch{ } block for that.

Quote:

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Originally Posted by ashukla

How a way pbOk handle error when bad allocation exists due to some reason.

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Very simple - it doesn't. In most cases it would be a fatal error anyway...

Quote:

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Originally Posted by wysota

Very simple - it doesn't. In most cases it would be a fatal error anyway...

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Then, I should use try{} and catch{} block for new or not in my classes.
In some cases, if I does not use try{} catch{} for new and due to some reason object does not allocated and when I destroy object it gives segmentation fault.

Quote:

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Originally Posted by ashukla

Then, I should use try{} and catch{} block for new or not in my classes.

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It depends on you. If you can recover from a lack of memory and you are worried they might happen, feel free to do it.

Quote:

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In some cases, if I does not use try{} catch{} for new and due to some reason object does not allocated and when I destroy object it gives segmentation fault.

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Most probably you have an error in your code (a dangling pointer perhaps) that is completely unrelated to exceptions thrown by operator new or lack of memory.