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Why are private fields private to the type, not the instance?
...k one reason it works this way is because access modifiers work at compile time. As such, determining whether or not a given object is also the current object isn't easy to do. For example, consider this code:
public class Foo
{
private int bar;
public void Baz(Foo other)
{
oth...
Commenting code in Notepad++
...s you to block comment.
Also note that pressing the combination multiple times allows you to add multiple "#"s (sometimes I use that while testing to differentiate from other comments)
2) Ctrl+Shift+K (on the commented region) allows you to perform block uncomment
3) Ctrl+Shift+K on an uncomment...
When should you use 'friend' in C++?
...out << (a + b).getValue(); // valid
}
Private CRTP Base Class
Sometimes, you find the need that a policy needs access to the derived class:
// possible policy used for flexible-class.
template<typename Derived>
struct Policy {
void doSomething() {
// casting this to Deriv...
Difference between two dates in MySQL
...
SELECT TIMEDIFF('2007-12-31 10:02:00','2007-12-30 12:01:01');
-- result: 22:00:59, the difference in HH:MM:SS format
SELECT TIMESTAMPDIFF(SECOND,'2007-12-30 12:01:01','2007-12-31 10:02:00');
-- result: 79259 the difference in se...
Why no love for SQL? [closed]
...pproach is fantastic, and it's actually modern (think LINQ). It's true sometimes you need to tweak for speed, and a procedural alternative to SQL might be useful then. But I'd still be using declarative SQL most of the time for the simplicity.
– MarkJ
Oct 29 '0...
Node Version Manager install - nvm command not found
...
I executed this manually multiple times until I finally put it in my .bashrc!
– Brady Dowling
Jul 21 '15 at 22:05
2
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Timeout function if it takes too long to finish [duplicate]
...signal.
The basic idea is to use signal handlers to set an alarm for some time interval and raise an exception once that timer expires.
Note that this will only work on UNIX.
Here's an implementation that creates a decorator (save the following code as timeout.py).
from functools import wraps
im...
What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i
...othing is being hurt". Just the fact that thousands of people are wasting time having to figure out what is going on is enough to dispute that.
– Mark Fraser
Apr 2 '12 at 12:36
16...
PHP Fatal error: Cannot redeclare class
...
Actually this answers the question perfectly and it is timeless, AaronLS makes an assumption then attempts to solve the problem which can now be solved many better ways.
– TarranJones
May 11 '16 at 11:32
...
Floating point vs integer calculations on modern hardware
...w floating point operation that already has the data in cache will be many times faster than an integer operation where an integer needs to be copied from system memory.
I assume that you are asking this question because you are working on a performance critical application. If you are developing ...