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What are forward declarations in C++?
...erence between declaration and definition
As an aside, it's important to know the difference between a declaration and a definition. A declaration just gives enough code to show what something looks like, so for a function, this is the return type, calling convention, method name, arguments and th...
Hashing a file in Python
... have to read bad style... which might be you reading this code years from now.
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(13: Permission denied) while connecting to upstream:[nginx]
...onf
Change ownership to user.
sudo chown -R nginx:nginx /var/lib/nginx
Now see the magic.
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Why is Multiple Inheritance not allowed in Java or C#?
I know that multiple inheritance is not allowed in Java and C#. Many books just say, multiple inheritance is not allowed. But it can be implemented by using interfaces. Nothing is discussed about why it is not allowed. Can anybody tell me precisely why it is not allowed?
...
Why can't stash be applied to the working directory?
...work normally in git using the normal branch-related techniques/tools you know and love. This is actually a useful general technique for working with stashes even when you don't have the listed error. It works well because a stash really is a commit under the covers (see PS).
Converting a stash to ...
PDOException SQLSTATE[HY000] [2002] No such file or directory
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I would love to know WHY localhost doesn't work and 127.0.0.1 does??
– Justin
Oct 18 '14 at 2:35
6
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Java Round up Any Number
...
I don't know why you are dividing by 100 but here my assumption int a;
int b = (int) Math.ceil( ((double)a) / 100);
or
int b = (int) Math.ceil( a / 100.0);
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What RSA key length should I use for my SSL certificates?
...livered by CA and used by software.
Will eventually be cracked too. Don't know when but could take decades.
Doubling the size takes many many orders of magnitude more compute power to crack. See question how much stronger is RSA 2048 compared to 1024.
4096 bits
4096 bits RSA certificates are th...
Date.getDay() javascript returns wrong day
...
From now on you probably want to use the following below functions for Date objects:
function dayOf(date)
{
return date.getDate();
}
function monthOf(date)
{
return date.getMont...
jQuery UI accordion that keeps multiple sections open?
...been updated to support default active tabs option
UPDATE:
This plugin is now deprecated.
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