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Do I need to manually close an ifstream?
...e() for you automatically because of RAII but will not leave you a way of testing the fail bit as the object no longer exists.
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Mercurial for Beginners: The Definitive Practical Guide
...al will track them. For example, if you have a bunch of files like deploy-test.conf, deploy-production.conf, etc and don't want to version them (they might have passwords in them) but you do want to version deploy-template.conf you can just ignore deploy* and manually add deploy-templace.conf.
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How does IPython's magic %paste work?
...Optional mouse support
More on this here
To upgrade ipython to the latest version
pip install ipython --upgrade
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Is it a good idea to index datetime field in mysql?
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Here author performed tests showed that integer unix timestamp is better than DateTime. Note, he used MySql. But I feel no matter what DB engine you use comparing integers are slightly faster than comparing dates so int index is better than DateTi...
How to add local jar files to a Maven project?
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There are times when you want to specifically test an old jar for example, and I think this answer is a good fit for that. It's the one I needed. Upvoted
– John Lockwood
Oct 31 '14 at 21:19
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What is the use of a private static variable in Java?
...hat is the only case I use private static for.
Here is an example:
Class test {
public static String name = "AA";
private static String age;
public static void setAge(String yourAge) {
//here if the age variable is not static you will get an error that you cannot access non static...
Is optimisation level -O3 dangerous in g++?
...oduction software ships with O2 which means O3 will get less attention wrt testing and bug fixes.
Think of it this way: O3 adds more transformations on top of O2, which adds more transformations on top of O1. Statistically speaking, more transformations means more bugs. That's true for any compile...
How do you remove the root CA certificate that fiddler installs
... if you've put that cert on multiple devices (fairly common during network testing), and you only want to remove it on one (source - http://www.cantoni.org/2013/11/06/capture-android-web-traffic-fiddler):
Go to the Security tab in settings
Tap Trusted credentials, then select the User tab
Tap on ...
jQuery UI accordion that keeps multiple sections open?
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Here's the jsFiddle I used to test it jsfiddle.net/txo8rx3q/1 I also added some CSS to stop an opened accordion section looking selected when it's expanded
– Matthew Lock
Sep 2 '14 at 0:07
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Using only CSS, show div on hover over
...information and div.popup then see Hover Over The Popup below.
It has been tested and works as expected in Opera 12.16 Internet Explorer 10.0.9200, Firefox 18.0 and Google Chrome 28.0.15.
Hover Over The Popup
As additional information. When the popup contains information that you might want to c...