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When can I use a forward declaration?
...ssuming the following forward declaration.
class X;
Here's what you can and cannot do.
What you can do with an incomplete type:
Declare a member to be a pointer or a reference to the incomplete type:
class Foo {
X *p;
X &r;
};
Declare functions or methods which accept/return inco...
Change drawable color programmatically
...ng DrawableCompat is important because it provides backwards compatibility and bug fixes on API 22 devices and earlier.
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Get local href value from anchor (a) tag
I have an anchor tag that has a local href value, and a JavaScript function that uses the href value but directs it to a slightly different place than it would normally go. The tag looks like
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ActiveRecord OR query
... do an OR query in Rails 3 ActiveRecord. All the examples I find just have AND queries.
14 Answers
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Extracting .jar file with command line
...m trying to extract the files from a .jar file. How do I do that using command line?
8 Answers
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JUnit test with dynamic number of tests
...ct I have several JUnit tests that e.g. take every file from a directory and run a test on it. If I implement a testEveryFileInDirectory method in the TestCase this shows up as only one test that may fail or succeed. But I am interested in the results on each individual file. How can I write a...
Spring - @Transactional - What happens in background?
...hapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation.
But at a very high level, Spring creates proxies for classes that declare @Transactional on the class itself or on members. The proxy ...
How to identify whether a file is normal file or directory
...
os.path.isdir() and os.path.isfile() should give you what you want. See:
http://docs.python.org/library/os.path.html
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Moq: Invalid setup on a non-overridable member: x => x.GetByTitle(“asdf”)
...vior you're trying to control is marked virtual. In your comment, I understand it so that the instantiating of _mockArticleDao is done something like this:
_mockArticleDao = new Mock<ArticleDAO>();
If you want to keep it as so, you need to mark the GetArticle method virtual:
public class A...
Limit labels number on Chart.js line chart
...i missing some place where i may actually find all those little properties and overridable callbacks documented?
– Max Yari
Mar 9 '18 at 16:28
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