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Static variable inside of a function in C
...o() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over al...
Build .so file from .c file using gcc command line
...lo.c
to do it in one step. – Jonathan Leffler
I also suggest to add -Wall to get all warnings, and -g to get debugging information, to your gcc commands. – Basile Starynkevitch
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Detect Chrome extension first run / update
...versions of Chrome (since Chrome 22), you can use the chrome.runtime.onInstalled event, which is much cleaner.
Example:
// Check whether new version is installed
chrome.runtime.onInstalled.addListener(function(details){
if(details.reason == "install"){
console.log("This is a first inst...
How to create the perfect OOP application [closed]
...problem description:
Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and medical products that are exempt. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions. When I purchase items I receive a receipt which...
Difference between Control Template and DataTemplate in WPF
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Typically a control is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however,...
What is the alternative for ~ (user's home directory) on Windows command prompt?
... Powershell, which I believe you can get on XP and later (and comes preinstalled with Win7), allows you to use ~ for home directory.
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
...code, as per the job specs, but I am baffled. (And quite possibly doing it all wrong.)
10 Answers
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How can I determine the direction of a jQuery scroll event?
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An update on this: Be careful that some browsers, specially IE 11 on Windows 8, can fire a scroll event subpixel-based (smooth scrolling). But because it reports scrollTop as an integer, your previous scroll value could be the same as the current one.
– Rena...
How do I put all required JAR files in a library folder inside the final JAR file with Maven?
I am using Maven in my standalone application, and I want to package all the dependencies in my JAR file inside a library folder, as mentioned in one of the answers here:
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How to get the process ID to kill a nohup process?
...&) will give you the PID at the command prompt. If your plan is to manually manage the process, you can save that PID and use it later to kill the process if needed, via kill PID or kill -9 PID (if you need to force kill). Alternatively, you can find the PID later on by ps -ef | grep "command na...