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Why are Where and Select outperforming just Select?
...00;
Random r = new Random();
var list = Enumerable.Range(0, total).Select(i => r.Next(0, 5)).ToList();
for (int i = 0; i < 4000000; i++)
list[i] = 10;
var sw = new Stopwatch();
sw.Start();
int sum = 0;
...
Find files containing a given text
...rom being the most elegant way. As I said, my intention is to increase the range of possibilities (and also to give more complete explanations on some tools you could use).
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When and why I should use session_regenerate_id()?
...techniques can be utilized to "fix" the session ID value. These techniques range from Cross-site Scripting exploits to peppering the web site with previously made HTTP requests. After a user's session ID has been fixed, the attacker will wait for that user to login. Once the user does so, the attack...
Android: Generate random color on click?
...) says "Returns a pseudo-random uniformly distributed int in the half-open range [0, n)"
– Catalin Morosan
Oct 28 '11 at 13:09
1
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Validate a username and password against Active Directory?
...erwise invoking the Win32 LogonUser API call. The list below summarizes a range of common values with hex and decimal values:
525 user not found (1317)
52e invalid credentials (1326)
530 not permitted to logon at this time (1328)
531 not permitted to logon at this workstation...
Static linking vs dynamic linking
... its limits it might be worth doing it.
I would add: (3) the linker can arrange functions in a more cache efficient grouping, so that expensive cache level misses are minimised. It also might especially effect the startup time of applications (based on results i have seen with the Sun C++ compiler)...
Is it possible to dynamically compile and execute C# code fragments?
...ic void Main(string[] args) {
var q = from i in Enumerable.Range(1,100)
where i % 2 == 0
select i;
}
}");
results.Errors.Cast<CompilerError>().ToList().ForEach(error => Console.WriteLine(er...
Vim multiline editing like in sublimetext?
...asd" asd asd;
:norm[al] allows you to execute normal mode commands on a range of lines (the '<,'> part is added automatically by Vim and means "act on the selected area")
^ puts the cursor on the first char of the line
w moves to the next word
i" inserts a " before the cursor
<C-v><...
iPhone OS: How do I create an NSDate for a specific date?
...tampFormatterWithTimeZone getObjectValue:&theDate forString:dateString range:nil error:&error]) {
NSLog(@"Date '%@' could not be parsed: %@", dateString, error);
}
return theDate;
}
@end
Using this code, you could set an NSDate value using something like:
NSDate* date = ...
Text editor to open big (giant, huge, large) text files [closed]
...tion of the answer above.
Perl
Perl is good for quick scripts, and its .. (range flip-flop) operator makes for a nice selection mechanism to limit the crud you have to wade through.
For example:
$ perl -n -e 'print if ( 1000000 .. 2000000)' humongo.txt | less
This will extract everything from line ...