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Is “else if” faster than “switch() case”? [duplicate]
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For just a few items, the difference is small. If you have many items you should definitely use a switch.
If a switch contains more than five items, it's implemented using a lookup table or a hash list. This means that all items get the same access time, compared to...
Difference between a User and a Login in SQL Server
...e recently been running into many different areas of SQL Server that I normally don't mess with. One of them that has me confused is the area of Logins and Users. Seems like it should be a pretty simple topic...
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How to set current working directory to the directory of the script in bash?
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If you called the script as ./script, . is the correct directory, and changing to . it will also end up in the very directory where script is located, i.e. in the current working directory.
– ndim
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Cause CMAKE to generate an error
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The message() method has an optional argument for the mode, allowing STATUS, WARNING, AUTHOR_WARNING, SEND_ERROR, and FATAL_ERROR. STATUS messages go to stdout. Every other mode of message, including none, goes to stderr.
You want SEND_ERROR if you want to output an error, but contin...
Tricky Google interview question
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This is a really nice implementation, using a minimum of memory. It is linear memory even if you want only one number though.
– Thomas Ahle
Feb 23 '12 at 0:10
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s
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My initial reaction was #ifdef, of course, but I think #if actually has some significant advantages for this - here's why:
First, you can use DEBUG_ENABLED in preprocessor and compiled tests. Example - Often, I want longer timeouts when debug is enabled, so using #if, I can write this
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How to change the text on the action bar
...pportActionBar().setTitle("Hello world App"); // provide compatibility to all the versions
=> Customizing Action Bar,
For example:
@Override
public void setActionBar(String heading) {
// TODO Auto-generated method stub
com.actionbarsherlock.app.ActionBar actionBar = getSupportAction...
What does upstream mean in nginx?
... location / {
proxy_pass http://myproject;
}
}
}
This means all requests for / go to the any of the servers listed under upstream XXX, with a preference for port 8000.
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How to install pip with Python 3?
I want to install pip . It should support Python 3, but it requires setuptools, which is available only for Python 2.
21 A...
Merge pull request to a different branch than default, in Github
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As of 15.08.2016 GitHub allows changing the target branch of a pull request via the GUI. Click Edit next to the title, then select the branch from the dropdown.
You can now change the base branch of an open pull request. After you’ve created...