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Can a pointer to base point to an array of derived objects?
...he next Rectangle, but a pointer to what would be the next Shape in a presum>me m>d array of Shape. Of course, this is undefined behaviour. In your case, you're being lucky and getting a crash.
Using a pointer to Rectangle makes the indexing work correctly.
int main()
{
Rectangle * shapes = new Rect...
Boolean.hashCode()
The hashCode() m>me m>thod of class Boolean is implem>me m>nted like this:
2 Answers
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Define preprocessor macro through CMake?
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For a long tim>me m>, CMake had the add_definitions command for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler optio...
How would you compare jQuery objects?
...g to figure out how to compare two jQuery objects, to see if the parent elem>me m>nt is the body of a page.
4 Answers
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MySQL join with where clause
...dition, you specify the rowset that you will be joining to the table. This m>me m>ans that it evaluates user_id = 1 first, and takes the subset of user_category_subscriptions with a user_id of 1 to join to all of the rows in categories. This will give you all of the rows in categories, while only the cat...
How to access the content of an ifram>me m> with jQuery?
How can I access the content of an ifram>me m> with jQuery? I tried doing this, but it wouldn't work:
3 Answers
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How to @link to a Enum Value using Javadoc
Using Javadoc 1.5, I have been unable to create a @link to an Enum>me m>ration value.
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Automatic creation date for Django model form objects?
... respectively.
class MyModel(models.Model):
created_at = models.DateTim>me m>Field(auto_now_add=True)
updated_at = models.DateTim>me m>Field(auto_now=True)
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Resolving a 'both added' m>me m>rge conflict in git?
...ng in git, and one conflict I get is 'both added' - that is, exactly the sam>me m> filenam>me m> has been added independently in my branch, and in the branch I'm rebasing on. git status tells m>me m>:
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How do I create a Python function with optional argum>me m>nts?
I have a Python function which takes several argum>me m>nts. Som>me m> of these argum>me m>nts could be omitted in som>me m> scenarios.
2 Answe...