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What is your favorite C programming trick? [closed]
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I like the "struct hack" for having a dynamically sized object. This site explains it pretty well too (though they refer to the C99 version where you can write "str[]" as the last member of a struct). you could make a string "object" like this:
struct X {
int len;
char str[1];
};
int...
How to validate phone numbers using regex
...ually a phone number. For example, what if the user doesn't enter the requisite 10 digits? This should be combined with good regex validation.
– Hugh Jeffner
Jul 29 '10 at 13:40
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“CAUTION: provisional headers are shown” in Chrome debugger
... determine that this was my problem because when I did the above. My https site was calling an https css file that was doing a 302 redirect to an http page. Security wouldn't allow the file to load and only showed the provisional headers.
– Steropes
Jan 12 '16...
Preloading images with JavaScript
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Issues such as support for the command. Check out the site "can i use" to see if a browser you are required to support has support for a javascript command.
– Dave
Jan 26 '18 at 14:44
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twitter bootstrap navbar fixed top overlapping site
I am using bootstrap on my site and am having issues with the navbar fixed top. When I am just using the regular navbar, everything is fine. However, when i try to switch it to navbar fixed top, all the other content on the site shifts up like the navbar isn't there and the navbar overlaps it. here'...
What is the difference between Cygwin and MinGW?
...oes this mean I need to download the mingw libraries from mingw's official site in order to compile to a mingw target from a cygwin host? Or can these libraries be downloaded from Cygwin's package system?
– CMCDragonkai
Feb 20 '15 at 7:02
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MD5 algorithm in Objective-C
...11172-CH9-SW1
Search for Cryptographic Services Guide on Apple developer site.
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How to check version of python modules?
...SD
Location: c:\users\prowinjvm\appdata\local\programs\python\python36\lib\site-packages
Requires:
For more Details: >>> pip help
pip should be updated to do this.
pip install --upgrade pip
On Windows recommend command is:
python -m pip install --upgrade pip
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What is the difference between sites-enabled and sites-available directory?
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The difference is that virtual sites listed in the sites-enabled directory are served by apache. In the sites-available directory there are the virtual sites that exist on your server but people can't access them because they are not enabled yet.
sites...
PHP - include a php file and also send query parameters
...] : 0;
?>
I also have other dynamic includes like this throughout the site that pass parameters. The problem happens when the user presses submit and there is a form error. So now to not duplicate code to include those extra field sets that where dynamically included, i created a function tha...