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Object-orientation in C
...ferences, event handling (called "signals"), runtime typing, private data, etc.
It includes preprocessor hacks to do things like typecasting around in the class hierarchy, etc. Here's an example class I wrote for GNOME (things like gchar are typedefs):
Class Source
Class Header
Inside the GObjec...
When use getOne and findOne methods Spring Data JPA
...ockModeType();
Map<String, Object> hints = getQueryHints().withFetchGraphs(em).asMap();
return Optional.ofNullable(type == null ? em.find(domainType, id, hints) : em.find(domainType, id, type, hints));
}
And here em.find() is an EntityManager method declared as :
public <T> ...
How Scalable is SQLite? [closed]
...port records on the fly to sqlite from any rdbms like sql server or oracle etc?
– ILoveStackoverflow
Feb 16 '18 at 6:36
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right click context menu for datagridview
... a menu pop up. Then i would like to select things such as copy, validate, etc
7 Answers
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Difference between Java SE/EE/ME?
...ogrammer should learn (java.lang, java.io, java.math, java.net, java.util, etc...).
Java EE = Enterprise Edition. From Wikipedia:
The Java platform (Enterprise Edition) differs from the Java Standard
Edition Platform (Java SE) in that it adds libraries which provide
functionality to dep...
What exactly are DLL files, and how do they work?
...e binary files that can contain executable code and resources like images, etc. Unlike applications, these cannot be directly executed, but an application will load them as and when they are required (or all at once during startup).
Are they important?
Most applications will load the DLL files the...
Count(*) vs Count(1) - SQL Server
...vers (such as auto-stats, xevent sessions, query store overhead, triggers, etc.). It is maybe a few thousand extra CPU instructions. So, count(1) does a tiny bit less work during compilation (which will usually happen once and the plan is cached across multiple subsequent executions). For executi...
Finalize vs Dispose
...ces you have acquired (unmanaged data, database connections, file handles, etc) the moment the code is done with your object.
The standard practice is to implement IDisposable and Dispose so that you can use your object in a using statment. Such as using(var foo = new MyObject()) { }. And in your f...
How to measure time taken by a function to execute
...E 10 ++
FireFox 15 ++
Chrome 24 ++
Safari 8 ++
Opera 15 ++
Android 4.4 ++
etc, etc
console.time may be viable for you, but it's non-standard §:
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. The...
When should you use constexpr capability in C++11?
...ose types of functions can be used in metaprogramming, or as array bounds, etc etc.
Another example off of the top of my head would be that for class interfaces, you may want derived types define their own constants for some operation.
Edit:
After poking around on SO, it looks like others have co...