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Difference between a Structure and a Union
...ory values, let's set and print out the values in hex:
union foo x;
x.a = 0xDEADBEEF;
x.b = 0x22;
printf("%x, %x\n", x.a, x.b);
prints
deadbe22, 22
You can clearly see where the 0x22 overwrote the 0xEF.
BUT
In C, the order of bytes in an int are not defined. This program overwrote the 0xEF w...
How do SQL EXISTS statements work?
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edited Oct 23 '16 at 0:55
answered Apr 30 '12 at 7:06
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htaccess Access-Control-Allow-Origin
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answered Dec 14 '12 at 0:40
vifargentvifargent
2,81111 gold badge1010 silver badges44 bronze badges
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How is mime type of an uploaded file determined by browser?
...n the file: https://cs.chromium.org/chromium/src/net/base/mime_util.cc?l=170 (kPrimaryMappings and kSecondaryMappings).
An example: when uploading a CSV file from a Windows system with Microsoft Excel installed, Chrome will report this as application/vnd.ms-excel. This is because .csv is not specifi...
returning in the middle of a using block
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answered Mar 19 '09 at 16:02
JaredParJaredPar
648k133133 gold badges11601160 silver badges13951395 bronze badges
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Git: list only “untracked” files (also, custom commands)
...to xargs, it is wise to mind white spaces using git ls-files -z and xargs -0:
git ls-files -z -o --exclude-standard | xargs -0 git add
Nice alias for adding untracked files:
au = !git add $(git ls-files -o --exclude-standard)
Edit: For reference: git-ls-files
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Hamcrest compare collections
...on.
– Eyad Ebrahim
Oct 6 '14 at 18:30
4
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How can I use external JARs in an Android project?
I have created an Android project and added an external JAR (hessian-4.0.1.jar) to my project. I then added the JAR to the build path and checked it off in Order and Export.
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Which one is the best PDF-API for PHP? [closed]
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answered Oct 30 '09 at 9:46
gpilotinogpilotino
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HTML5 textarea placeholder not appearing
...ea></textarea>
Bad:
<textarea>
</textarea>
Update (2020)
This is not true anymore, according to the HTML5 parsing spec:
If the next token is a U+000A LINE FEED (LF) character token,
then ignore that token and move on to the next one. (Newlines
at the start of textarea elemen...