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Is there a performance difference between i++ and ++i in C?
...re i resides have to be reloaded later. But then note that the compiler is free to order your instructions in any way it pleases, as long as it doesn't "break the behavior of the abstract machine" as the C standard calls it.
So while you may assume that array[i++] = x; gets translated to machine co...
mongoDB/mongoose: unique if not null
... or object when not null).
If you're not interested in the details, feel free to skip to the implementation section.
longer version
To supplement @Nolan's answer, starting with MongoDB v3.2 you can use a partial unique index with a filter expression.
The partial filter expression has limitation...
SOAP or REST for Web Services? [closed]
...selecting "update" and then fixing a few compile errors. (Sarcasm included free of charge.)
– Josh M.
Nov 4 '10 at 18:36
...
How to validate phone numbers using regex
...r based on the number itself; able to distinguish Fixed-line, Mobile, Toll-free, Premium Rate, Shared Cost, VoIP and Personal Numbers (whenever feasible).
isNumberMatch - gets a confidence level on whether two numbers could be the same.
getExampleNumber/getExampleNumberByType - provides valid exampl...
Which concurrent Queue implementation should I use in Java?
...
ConcurrentLinkedQueue is lock-free, LinkedBlockingQueue is not. Every time you invoke LinkedBlockingQueue.put() or LinkedBlockingQueue.take(), you need acquire the lock first. In other word, LinkedBlockingQueue has poor concurrency. If you care performanc...
How slow are .NET exceptions?
...
unfortunately, people are told exceptions are free, use them for trivial 'correct' functionality, they should be used as you say, when things have gone wrong - in 'exceptional' circumstances
– gbjbaanb
Oct 2 '08 at 12:36
...
What are best practices for REST nested resources?
... way is easier both in understanding and in applying constraints then feel free to give an answer. Its about making the mapping explicit in this case. It could work with a parameter but really thats what the question is. What is the best way.
– Wes
Sep 15 '18 a...
Request is not available in this context
...le
{
public void Dispose()
{
// nothing to free
}
private const string _ipKey = "IP";
private const string _urlKey = "URL";
private const string _refererKey = "Referer";
private const string _userAgentKey = "UserAgent";
...
Changing the cursor in WPF sometimes works, sometimes doesn't
...f you find a solution, perhaps using a ConcurrentStack<Cursor>, feel free to edit the above answer or add your own.
– Dennis
Jun 8 '18 at 2:27
2
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Transfer-Encoding: gzip vs. Content-Encoding: gzip
...r-Encoding is a pure transport layer detail, i.e. an intermediate proxy is free to undo e.g. gzip compression at that level, whereas Content-Encoding is a business layer property, which a proxy would not be allowed to change, in addition to other ramifications (ETags etc). According to reality howev...