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Is the order of iterating through std::map known (and guaranteed by the standard)?
...::map is a sorted associative container
std::unordered_map is a hash-table based associative container introduced in C++11
So, in order to clarify the guarantees on ordering.
In C++03:
std::set, std::multiset, std::map and std::multimap are guaranteed to be ordered according to the keys (and th...
How do you create an asynchronous method in C#?
...read calls the asynchronous write method. WriteAsync is implemented by the Base Class Library (BCL), and uses completion ports for its asynchronous I/O. So, the WriteAsync call is passed down to the OS as an asynchronous file write. The OS then communicates with the driver stack, passing along the d...
Why Doesn't C# Allow Static Methods to Implement an Interface?
... You could also simply implement the piece as an extension method onto the base interface, as in: public static object MethodName(this IBaseClass base) within a static class. The downside, however, is that unlike an interface inheritance - this does not force / allow the individual inheritors to ove...
jquery's append not working with svg element?
...G to work at all. (It kind of makes sense to anyway; SVG is a properly XML-based standard.) This means you'd have to escape the < symbols inside your script block (or enclose in a CDATA section), and include the XHTML xmlns declaration. example:
<!DOCTYPE html>
<html xmlns="http://www.w...
Retrieving the last record in each group - MySQL
... both queries and use the one that is better at performance given your database.
For example, I have a copy of the StackOverflow August data dump. I'll use that for benchmarking. There are 1,114,357 rows in the Posts table. This is running on MySQL 5.0.75 on my Macbook Pro 2.40GHz.
I'll write a...
When would I need a SecureString in .NET?
...t wont be easy to find the symmetric encryption key, since SecureString is based on DPAPI, which doesnt exactly store a key in plaintext...
– AviD
Sep 27 '08 at 17:48
1
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Executors.newCachedThreadPool() versus Executors.newFixedThreadPool()
...ume a non-negligible amount of memory and also increase memory consumption based on their work-in-progress, so it's quite easy to topple a server this way (unless you have other circuit-breakers in place).
The unbounded problem is exacerbated by the fact that the Executor is fronted by a Synchronous...
Customizing the template within a Directive
...ch creates the template html, from compile to a template function. Example based on code from above:
angular.module('formComponents', [])
.directive('formInput', function() {
return {
restrict: 'E',
template: function(element, attrs) {
var type = attrs.type || '...
How to sort an array in Bash
...espace (except newlines)
Note readarray is supported in bash 4+.
Edit Based on the suggestion by @Dimitre I had updated it to:
readarray -t sorted < <(printf '%s\0' "${array[@]}" | sort -z | xargs -0n1)
which has the benefit of even understanding sorting elements with newline character...
In MySQL queries, why use join instead of where?
...t for JOIN types other than INNER, making queries easy to use on other databases
WHERE clause only serves as filtration of the cartesian product of the tables joined
From a Design Perspective:
ANSI-92 JOIN syntax is pattern, not anti-pattern:
The purpose of the query is more obvious; the colu...