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Why use static_cast(x) instead of (int)x?
I've heard that the static_cast function should be preferred to C-style or simple function-style casting. Is this true? Why?
...
When to Redis? When to MongoDB? [closed]
...er documents, arrays, or scalar values. Consider the below document.
{
_id: 0x194f38dc491a,
Name: "John Smith",
PhoneNumber:
Home: "555 999-1234",
Work: "555 999-9876",
Mobile: "555 634-5789"
Accounts:
- "379-1111"
- "379-2574"
- "414-6731"
}
The above document ...
What would be C++ limitations compared C language? [closed]
...ary subset of C++. C is not a subset of C++ at all.
This is valid C:
foo_t* foo = malloc ( sizeof(foo_t) );
To make it compile as C++ you have to write:
foo_t* foo = static_cast<foo_t*>( malloc ( sizeof(foo_t) ) );
which isn't valid C any more. (you could use the C-style cast, it which...
TCP vs UDP on video stream
...occer-fans and the internet itself is against me so I figure it's my loss ^_^
– Alxandr
May 31 '11 at 12:46
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show 2 more comments
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When do you use map vs flatMap in RxJava?
...ten" this observable of observables (you might start to see where the name _flat_Map comes from). RxJava provides a few ways to flatten observables and for sake of simplicity lets assume merge is what we want. Merge basically takes a bunch of observables and emits whenever any of them emits. (Lots o...
Is a view faster than a simple query?
...sults I get refer to Oracle, not SQL server, e.g. docs.oracle.com/cd/E14072_01/server.112/e10810/qrbasic.htm
– BradC
Jan 9 '13 at 21:18
...
How to make custom error pages work in ASP.NET MVC 4
...mething like this:
@model System.Web.Mvc.HandleErrorInfo
@{
Layout = "_Layout.cshtml";
ViewBag.Title = "Error";
}
<div class="list-header clearfix">
<span>Error</span>
</div>
<div class="list-sfs-holder">
<div class="alert alert-error">
An...
Python base64 data decode
...
import base64
coded_string = '''Q5YACgA...'''
base64.b64decode(coded_string)
worked for me. At the risk of pasting an offensively-long result, I got:
>>> base64.b64decode(coded_string)
2: 'C\x96\x00\n\x00\x00\x00\x00C\x96\x00\x1b\x0...
How to work around the lack of transactions in MongoDB?
...- they'll be multi-statement, with similar semantics and syntax (like start_transaction and commit_transaction). Importantly, the changes to MongoDB that enable transactions do not impact performance for workloads that do not require them.
For more details see here.
Having distributed transaction...
Best practices for Storyboard login screen, handling clearing of data upon logout
... return true
In Sign up view controller:
@IBAction func actionSignup(_ sender: Any) {
let appDelegateTemp = UIApplication.shared.delegate as? AppDelegate
appDelegateTemp?.window?.rootViewController = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateInitialViewController()
}
MyTabTh...