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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
... of which is generated by the compiler at compile time after getting the information of the data type from the argument. As long as the memory layout cannot be created, the instructions for the method definition cannot be generated. Remember the first argument of the class method is the 'this' opera...
Git merge errors
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How do I determine the size of my array in C?
...-time too, so there's no need to worry about the division affecting the performance of the program. So use this form wherever you can.
It is always best to use sizeof on an actual object when you have one, rather than on a type, since then you don't need to worry about making an error and stating t...
Best way to convert IList or IEnumerable to Array
... know it, make the method generic and try this:
public static void T[] PerformQuery<T>()
{
IEnumerable query = ...;
T[] array = query.Cast<T>().ToArray();
return array;
}
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Exclude a sub-directory using find
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How to get the error message from the error code returned by GetLastError()?
...fter a Windows API call, how can I get the last error message in a textual form?
11 Answers
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Unique BooleanField value in Django?
...oose:
@semente: Respects the constraint at the database, model and admin form levels while it overrides Django ORM the least possible. Moreover it can probably be used inside a through table of a ManyToManyField in aunique_together situation. (I will check it and report)
class MyModel(models.Mo...
Display number with leading zeros
...r(1).zfill(2))
print(str(10).zfill(2))
print(str(100).zfill(2))
prints:
01
10
100
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Why can't overriding methods throw exceptions broader than the overridden method?
...to this rule. You can add an unchecked exception to the throws clause as a form of documentation if you want, but the compiler doesn't enforce anything about it.
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What are attributes in .NET?
...your custom attributes as being sealed classes to improve their runtime performance.
It is also a good idea to consider where it would be appropriate to use place such an attribute, and to attribute your attribute (!) to indicate this via AttributeUsage. The list of available attribute usages migh...