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“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
...
I tried to start my binary, compiled with Qt 5.7, on Ubuntu 16.04 LTS where Qt 5.5 is preinstalled. It didn't work.
At first, I inspected the binary itself with ldd as was suggested here, and "satisfied" all "not found" dependencies. Then this notorious This application failed to start b...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...k(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5743)
at java.lang.reflect.Method.invoke!(Native method)
at java.lang.reflect.Method.invoke(Method.java:372)
...
Ubuntu rails install fails on zlib
...stion trying to install Ruby using Ruby Version Manager (RVM) on Ubuntu 10.04 then there are instructions on installing zlib on the rvm web site http://rvm.beginrescueend.com/packages/zlib/
The steps are:
rvm pkg install zlib
(or
rvm package install zlib if you get "ERROR: Unrecognized comm...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...ce: http://us1.php.net/manual/en/function.openssl-random-pseudo-bytes.php#104322
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MySQL: Enable LOAD DATA LOCAL INFILE
...infile underneath each of them.
It works for me on MySQL 5.5 on Ubuntu 12.04 LTS.
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Run an OLS regression with Pandas Data Frame
...3 Prob (F-statistic): 0.421
Time: 20:04:30 Log-Likelihood: -18.178
No. Observations: 5 AIC: 42.36
Df Residuals: 2 BIC: 41.19
Df Model: ...
How to post pictures to instagram using API
...rray($http, $response);
}
function GenerateGuid() {
return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
mt_rand(0, 65535),
mt_rand(0, 65535),
mt_rand(0, 65535),
mt_rand(16384, 20479),
mt_rand(32768, 49151),
mt_ran...
Get the time difference between two datetimes
...will work ONLY when the total duration is less than 24 hours:
var now = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";
moment.utc(moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"))).format("HH:mm:ss")
// outputs: "00:39:30"
If you have 24 hours or more, the ho...
Where do I find the current C or C++ standard documents?
...cs/n1570.pdf
ISO/IEC 9899:2018 (C18):
https://web.archive.org/web/20181230041359if_/http://www.open-std.org/jtc1/sc22/wg14/www/abq/c17_updated_proposed_fdis.pdf (N2176)
For C++:
ISO/IEC 14882:1998 (C++98):
http://www.lirmm.fr/~ducour/Doc-objets/ISO+IEC+14882-1998.pdf
ISO/IEC 14882:2003 (C++03)...
How to calculate age (in years) based on Date of Birth and getDate()
...ow='1990-05-05', @Dob='1980-05-05' --results in 10
--SELECT @Now='1990-05-04', @Dob='1980-05-05' --results in 9
--SELECT @Now='1989-05-06', @Dob='1980-05-05' --results in 9
--SELECT @Now='1990-05-06', @Dob='1980-05-05' --results in 10
--SELECT @Now='1990-12-06', @Dob='1980-05-05' --results in...