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How do I change permissions for a folder and all of its subfolders and files in one step in Linux?
...nd is:
sudo chmod -R 755 /opt/lampp/htdocs
-R: change every sub folder including the current folder
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If strings are immutable in .NET, then why does Substring take O(n) time?
...stop and think about all the places this code can possibly be called from (including those that would only be invented in the next version) just to get 4 characters from the middle of a string"
– Nir
Jul 19 '11 at 11:41
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Setting Objects to Null/Nothing after use in .NET
...nd THEN ACTUALLY TEST performance as I've personally seen a lot of people (including myself when I was younger) spend wayyyy too much time making the "perfect" algorithm, only to have it save 0.1ms in 100,000 iterations all while readability was completely shot.
– Brent Rittenh...
hash function for string
... @Suragch: Since I wrote this, quite a few processors have started to include either special hardware to accelerate SHA computation, which has made it much more competitive. That said, I doubt your code is quite as safe as you think--for example, IEEE floating point numbers have two different b...
HEAD and ORIG_HEAD in Git
....com/docs/gitrevisions, which describes all the ways to reference commits (including HEAD and ORIG_HEAD).
– dahlbyk
Jul 11 '13 at 14:55
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Why do assignment statements return a value?
... was, either. As I said, aside from the reasons already mentioned -- which includes assignment chaining -- the using statement would be a lot more difficult to use were it not for the fact that the assignment operator returns the result of the assignment operation. This isn't really related to assig...
How to create a private class method?
...rt with a simple
C++ example that shows access to private class methods:
#include <iostream>
class C
{
public:
void instance_method(void)
{
std::cout << "instance method\n";
class_method(); // !!! LOOK !!! no 'send' required. We can access i...
Objective-C : BOOL vs bool
...ault), then there is a native Boolean type, _Bool (or bool if stdbool.h is included).
– dreamlax
Nov 17 '11 at 0:43
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What is the difference between 'E', 'T', and '?' for Java generics?
...ould be pithy (single character if possible) yet evocative, and should not include lower case letters. This makes it easy to distinguish type parameters from ordinary classes and interfaces."
– Andreas
Aug 31 at 12:33
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How to set Oracle's Java as the default Java in Ubuntu?
...ses enough reputation to do that but have enough to comment, please try to include some useful info in it like on what system and what OS did you test and find this solution working etc.
– Barracuda
Oct 16 '16 at 6:56
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