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How are virtual functions and vtable implemented?
We all know what virtual functions are in C++, but how are they implemented at a deep level?
12 Answers
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Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... ones (or at least quickest) broken.
UPDATE: CAPTCHA Killer's website is now taken down, apparently under legal pressure. See http://captcha.org/ for a complete overview of the topic.
And yeah, OCR is not the best way to break a CAPTCHA protected site - there are many other better ways.
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MySQL error: key specification without a key length
...----+
In this case, index selectivity is equal to IS=1/3 = 0.33.
Let us now see what will happen if we increase number of indexed characters to two (N=2).
+---------------+-----------+
| indexedValue | rows |
+---------------+-----------+
| ab | 1,2 |
| ad | 3 ...
how do I work around log4net keeping changing publickeytoken
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Don't know is it suitable for your particular case or not, but you can recompile one of the frameworks, so they will use log4net with the same public key. In my case it was FluentNHibernate which uses log4net 1.2.10 and Combres with...
What are the rules for the “…” token in the context of variadic templates?
...t side of ... is repeated — the unpacked patterns (call them expressions now) are separated by comma ,.
It can be best understood by some examples. Suppose you have this function template:
template<typename ...T> //pack
void f(T ... args) //pack
{
// here are unpack patterns
g( a...
How do I set cell value to Date and apply default Excel date format?
...ache POI for some time to read existing Excel 2003 files programmatically. Now I have a new requirement to create entire .xls files in-memory (still using Apache POI) and then write them to a file at the end. The only problem standing in my way is the handling of cells with dates.
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How can I discard remote changes and mark a file as “resolved”?
...e some local files, I pull from remote branch and there are conflicts. I know that I would like to keep my local changes and ignore the remote changes causing conflicts. Is there a command I can use to in effect say "mark all conflicts as resolved, use local"?
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JavaScript global event mechanism
...ough...
Update: it doesn't work in Opera, but I'm hacking Dragonfly right now to see what it gets. Suggestion about hacking Dragonfly came from this question:
Mimic Window. onerror in Opera using javascript
share
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Passing Objects By Reference or Value in C#
...value, as the initial value of the parameter of the method you're calling. Now the important point is that the value is a reference for reference types - a way of getting to an object (or null). Changes to that object will be visible from the caller. However, changing the value of the parameter to r...
Load resources from relative path using local html in uiwebview
...ctory:@"www"]];
[webview loadRequest:[NSURLRequest requestWithURL:url]];
Now all your relative links(like img/.gif, js/.js) in the html should get resolved.
Swift 3
if let path = Bundle.main.path(forResource: "dados", ofType: "html", inDirectory: "root") {
webView.load( URLRequest(u...