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How do you add swap to an EC2 instance?
...of it is available.
To add this extra space to your instance you type:
sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswap /var/swap.1
sudo chmod 600 /var/swap.1
sudo /sbin/swapon /var/swap.1
If you need more than 1024 then change that to something higher.
To enable it b...
Need some clarification about beta/alpha testing on the developer console
...re thing, open testing, closed testing, pausing tracks and stage rollouts, don't get confused by these terms.
1. Open testing - It means that you don't need to invite them, like no need to take their Gmail and add it to the user list. (Beta testing)
2. Closed testing - It means that you need to spec...
Xcode 4 - slow performance
... sure you have a backup of your project before performing these steps, and don't forget to check and test your project afterwards. Be sure you still have all of your executables and schemes.
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When 1 px border is added to div, Div size increases, Don't want to do that
...ick I am adding, 1px border to div, so Div size increases by 2px X 2px.
I dont want to get div size increased. Is there any simple way to do so?
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Checking if an object is null in C#
...d, make it private. And if there's nothing preventing you, make it also readonly. Just good practice.
Aside
The correct way to check for nullity is if(data != null). This kind of check is ubiquitous for reference types; even Nullable<T> overrides the equality operator to be a more convenient...
How do I make UILabel display outlined text?
...
I was able to do it by overriding drawTextInRect:
- (void)drawTextInRect:(CGRect)rect {
CGSize shadowOffset = self.shadowOffset;
UIColor *textColor = self.textColor;
CGContextRef c = UIGraphicsGetCurrentContext();
CGContextSetLi...
Clear a terminal screen for real
...
Use the following command to do a clear screen instead of merely adding new lines ...
printf "\033c"
yes that's a 'printf' on the bash prompt.
You will probably want to define an alias though...
alias cls='printf "\033c"'
Explanation
\033 == \x1B...
Is Unit Testing worth the effort? [closed]
...t Tests as we add functionality or fixed bugs. Unfortunately our code base does not lend itself to easy testing.
44 Answers...
HTML5 canvas ctx.fillText won't do line breaks?
...to add text to a canvas if the text includes "\n". I mean, the line breaks do not show/work.
17 Answers
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How do you get assembler output from C/C++ source in gcc?
How does one do this?
17 Answers
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