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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
Consider the following example on a 32 bit x86 machine:
11 Answers
11
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jQuery or CSS selector to select all IDs that start with some string [duplicate]
...the documentation says: To use any of the meta-characters ( such as !"#$%&'()*+,./:;<=>?@[\]^`{|}~ ) as a literal part of a name, it must be escaped with with two backslashes: \\. For example, an element with id="foo.bar", can use the selector $("#foo\\.bar")
– Vinic...
Efficiently test if a port is open on Linux?
...ec 6<>/dev/tcp/ip.addr.of.server/445
echo -e "GET / HTTP/1.0\n" >&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test fo...
How to port data-only volumes from one host to another?
... docker create for data-only containers so they will not be started. See example in the off. documentation: docs.docker.com/userguide/dockervolumes/…
– FelikZ
Feb 1 '15 at 16:25
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Batch script to delete files
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This is best done through pushd "folder" && del "filename" & popd.
– Nuno André
Sep 18 '19 at 11:50
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What are some (concrete) use-cases for metaclasses?
...a couple functions I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create both an interactive plotting wrapper and an offscreen plotting wrapper, I found it was more efficient to do this via metacla...
Practical non-image based CAPTCHA approaches?
... That one is great. The link to the site is random.irb.hr/signup.php. Sometimes it's a lot easier
– Marcio Aguiar
Sep 11 '08 at 8:45
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How to select the nth row in a SQL database table?
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Actually, from here php.about.com/od/mysqlcommands/g/Limit_sql.htm, if you wanted to grab the 15th entry wouldn't you do LIMIT 14, 1 (0th is the first element, 1 of length
– committedandroider
Feb 6 '1...
Proper URL forming with Query String and Anchor Hashtag
...may be necessary to submit the page using a
<form action='webpage.php?q=string#tag' method='GET or POST'>
<input type='text' id='q' name='q' value='string'>
<input type='submit' value='submit'>
</form>
rather than just a URL link
<a href='webpage...
Stop Chrome Caching My JS Files
...thing like script.js?a=[random Number] with the Random number generated by PHP.
Have you tried expire=0, the pragma "no-cache" and "cache-control=NO-CACHE"? (I dunno what they say about Scripts).
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