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How to remove convexity defects in a Sudoku square?
...light reflected from a (Lambertian) surface is just the surface brightness times the amount of light a white body in the same position would reflect. Estimate the apparent brightness of a white body in the same position, divide the actual brightness by that, and you get the surface's brightness.
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Creating Unicode character from its number
... not necessarily fit in a char. So you need to be absolutely sure ahead of time that your value of c is smaller than 0x10000, or else this approach will break horribly.
– David Given
Mar 13 '12 at 22:29
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Is there a REAL performance difference between INT and VARCHAR primary keys?
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And sometimes, (imho, often), both is better, the surrogate to use for FK references in other tables, and for Joins, and the natural key to ensure data consistency
– Charles Bretana
Dec 1 '08 at...
No == operator found while comparing structs in C++
...es and be relatively expensive to compare - if the values are loaded at runtime, the programmer may have insights the compiler can't possibly
in comparing strings: case sensitivity, equivalence of whitespace and separators, escaping conventions...
precision when comparing floats/doubles
whether NaN ...
Facebook share button and custom text [closed]
...et's you control the URL, title, caption, description and thumbnail at run-time.
Or use http://www.facebook.com/sharer.php with appropriate parameters.
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Automatic text translation at MSDN pages - How to turn off?
... how can i automate this operation? i am sick of rewriting url every time. it is 2017.
– Barış Akkurt
Apr 21 '17 at 8:29
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How to import Google Web Font in CSS file?
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I had internet explorer problem with @import. Sometimes it just don't read it.
– Burk
Aug 14 '15 at 12:21
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(13: Permission denied) while connecting to upstream:[nginx]
...| grep nginx | grep denied
as explained above.
So I solved them one at a time, toggling the flags on one at a time.
setsebool httpd_can_network_connect on -P
Then running the commands specified by @sorin and @Joseph above
sudo cat /var/log/audit/audit.log | grep nginx | grep denied |
audit2al...
Under what circumstances are linked lists useful?
Most times I see people try to use linked lists, it seems to me like a poor (or very poor) choice. Perhaps it would be useful to explore the circumstances under which a linked list is or is not a good choice of data structure.
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AWK: Access captured group from line pattern
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That was a stroll down memory lane...
I replaced awk by perl a long time ago.
Apparently the AWK regular expression engine does not capture its groups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
the -n flag causes perl to loop over every line li...