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boost::flat_map and its performance compared to map and unordered_map
...tion for these cases, using partial template specializations, or SFINAE to select algorithms according to traits of T.
About the flat map
Apparently the flat map is a sorted vector wrapper, like Loki AssocVector, but with some supplementary modernizations coming with C++11, exploiting move semanti...
PHP global in functions
... parameter.
function getCustomer($db, $id) {
$row = $db->fetchRow('SELECT * FROM customer WHERE id = '.$db->quote($id));
return $row;
}
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What is the advantage to using bloom filters?
...riefly tell the basics.
you initiate an empty bit array of length m
you select k different hash functions (the more independent the better)
if you want to add element, you calculate all the k hashes of this value and set the corresponding bits to 1
if you want to check if element exist, you also ...
What encoding/code page is cmd.exe using?
... code page for instance, but I do not know since when these code pages are selectable. (It is under Win7.)
– Adam L. S.
Dec 26 '14 at 14:08
...
Understanding REST: Verbs, error codes, and authentication
...w Session ID, or leave any residue on the server. The GET verb is like the SELECT statement in a database engine. Remember that the response to any request with the GET verb should be cache-able when requested with the same parameters, just like when you request a static web page.
Point 3: How to...
Regex Pattern to Match, Excluding when… / Except between
...tring[] ExceptionStrings {
set { m_exceptionRegexes = from es in value select new Regex(es); }
}
public bool IsMatch(string testStr) {
return (
m_searchRegex.IsMatch(testStr)
&& !m_exceptionRegexes.Any(er => er.IsMatch(testStr))
);
}
}
public class App {
...
Webfonts or Locally loaded fonts?
... I suppose if you're using a fairly popular font (may be cached) or only a select a handful of fonts, using webfonts is a great fairly quick font source. I'll post tests in speed here shortly.
– darcher
Mar 1 '14 at 21:04
...
How to parse freeform street/postal address out of text, and into components
...ybe you have a good way to deal with single-field US addresses, so if they select United States, you can reduce your form to a single field, otherwise show the component fields. Just things to think about!
Now we know why it's hard; what can you do about it?
The USPS licenses vendors through a proce...
What are the best JVM settings for Eclipse? [closed]
...ndows when you double click a file that is associated with eclipse, or you select files and choose "Open With" or "Send To" Eclipse.
Relative paths will be resolved first against the current working directory, and second against the eclipse program directory.
See bug 301033 for reference. Ori...
Create an index on a huge MySQL production table without table locking
...s).
Test Script:
(
for n in {1..50}; do
#(time mysql -uroot -e 'select * from website_development.users where id = 41225\G'>/dev/null) 2>&1 | grep real;
(time mysql -uroot -e 'update website_development.users set bio="" where id = 41225\G'>/dev/null) 2>&1 | grep r...