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Usage of protocols as array types and function parameters in swift
...}
let xy = XY(x: 1, y: 2)
let xz = XZ(x: 3, z: 4)
//let xs = [xy, xz] // error
let xs = [AnyX(xy), AnyX(xz)]
xs.forEach { print($0.x) } // 1 3
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How to close a Java Swing application from the code
... threads, your application will not terminate. This should be considered a error (and solving it with System.exit is a very bad idea).
The most common culprits are java.util.Timer and a custom Thread you've created. Both should be set to daemon or must be explicitly killed.
If you want to check fo...
How do I use Assert to verify that an exception has been thrown?
...
You are not required to specify the error message. This is sufficient: [ExpectedException(typeof(ArgumentException))]
– mibollma
Jul 20 '12 at 8:05
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Can you build dynamic libraries for iOS and load them at runtime?
...o this can be addressed properly. Show the code you're using, and all the error messages. If you want, you can also link back to this question/answer. If you add the "iphone-privateapi" tag, I'll see it. You should state that this is not for the app store, or people may vote to close the questio...
Android Fragment lifecycle over orientation changes
...reated. This is a massive pain in the rear most of the time.
You can stop errors occurring by using the same Fragment rather than recreating a new one. Simply add this code:
if (savedInstanceState == null) {
// only create fragment if activity is started for the first time
mFragmentManager...
How to add custom method to Spring Data JPA
...t working. When I try and do something similar I end up with an exception: Error creating bean with name 'accountRepositoryImpl': Bean with name 'accountRepositoryImpl' has been injected into other beans [accountRepository] in its raw version as part of a circular reference, but has eventually been ...
What is the reason behind cbegin/cend?
...&. If it takes it's parameters as int &, C++ will issue a compiler error.
C++17 has a more elegant solution to this problem: std::as_const. Well, at least it's elegant when using range-based for:
for(auto &item : std::as_const(vec))
This simply returns a const& to the object it...
What is the difference between char * const and const char *?
...e same as the previous case. (See ideone.com/RsaB7n where you get the same error for both foo and bar). I think typedef int * intptr; const intptr foo,bar; would declare both variables to be int * const: Yes. I don't know any way to use a combined declaration to create two variables of that type wit...
Parse JSON in TSQL
...r support with OpenJSON syntax : kodyaz.com/t-sql/sql-server-2016-openjson-error.aspx
– Eralper
Sep 4 '15 at 11:11
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Determine if a String is an Integer in Java [duplicate]
...ry to have this. It's not exception based, and will catch just about every error condition you can think of. It will be a little more expensive (you have to create a Scanner object, which in a critically-tight loop you don't want to do. But it generally shouldn't be too much more expensive, so for d...