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What is std::move(), and when should it be used?
...d object is usually deliberately sabotaged to avoid confusing errors (e.g. set its pointers to nullptr to signal that it no longer owns the pointees), the fact that the whole move is implemented by simply copying a pointer from the source to the destination (and deliberately avoiding doing anything ...
Correct format specifier for double in printf
What is the correct format specifier for double in printf? Is it %f or is it %lf ? I believe it's %f , but I am not sure.
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iOS 7 - How to display a date picker in place in a table view?
...o the table view.
The action method of the UIDatePicker will directly set the NSDate property of the custom table cell. In addition, this sample shows how to use NSDateFormatter class to achieve the custom cell's date-formatted appearance.
You can download the sample code here: DateCell.
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Rounded UIView using CALayers - only some corners - How?
...xtClosePath(context);
CGContextRestoreGState(context);
}
-(UIImage *)setImage
{
UIImage *img = [UIImage imageNamed:@"my_image.png"];
int w = img.size.width;
int h = img.size.height;
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmap...
Understanding the difference between __getattr__ and __getattribute__
...tattr__ only gets called for attributes that don't actually exist. If you set an attribute directly, referencing that attribute will retrieve it without calling __getattr__.
__getattribute__ is called all the times.
share...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
... Although this will not prevent the replay of data, it will insure that a set of data is only valid for a single user at a single time.
To prevent any replay attacks from occurring, some type of challenge-response system will have to be created, such as the following:
The flash game ("the client...
How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
...8601 in early Feb 2014 has resolved many issues. It handles a much broader set of valid ISO8601 strings. It is worth another look.
– Dave Hein
Nov 13 '14 at 0:46
4
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Python serialization - Why pickle?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
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Cocoa: What's the difference between the frame and the bounds?
... Actually, the bounds.origin can be something besides 0,0. Use setBoundsOrigin: to move/translate the origin. See "View Geometry" in the "View Programming Guide for Cocoa" for more info.
– Meltemi
Jul 31 '09 at 2:09
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Deleting elements from std::set while iterating
I need to go through a set and remove elements that meet a predefined criteria.
8 Answers
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