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Test whether string is a valid integer
...r example, [A-z] would not only give you A-Z and a-z but also \ , [, ], ^, _, and `.
– Doktor J
Jul 9 '18 at 18:13
...
Parallelize Bash script with maximum number of processes
...
cpus=$(getconf _NPROCESSORS_ONLN)
– mr.spuratic
Dec 3 '13 at 18:21
1
...
Proper way to exit iPhone application?
...ck the Q&A here: https://developer.apple.com/library/content/qa/qa1561/_index.html
Q: How do I programmatically quit my iOS application?
There is no API provided for gracefully terminating an iOS application.
In iOS, the user presses the Home button to close applications. Should y...
IPC performance: Named Pipe vs Socket
...ults are get with IPC benchmarking:
System: Linux (Linux ubuntu 4.4.0 x86_64 i7-6700K 4.00GHz)
Message: 128 bytes
Messages count: 1000000
Pipe benchmark:
Message size: 128
Message count: 1000000
Total duration: 27367.454 ms
Average duration: 27.319 us
Minimum duration: 5.888...
matplotlib does not show my drawings although I call pyplot.show()
...e it is:
>>> import matplotlib
>>> matplotlib.matplotlib_fname()
In [1]: import matplotlib.pyplot as p
In [2]: p.plot(range(20),range(20))
Out[2]: [<matplotlib.lines.Line2D object at 0xa64932c>]
In [3]: p.show()
If you edit ~/.matplotlib/matplotlibrc and change the...
How to fix “Headers already sent” error in PHP
...ipt:line)
Some functions modifying the HTTP header are:
header / header_remove
session_start / session_regenerate_id
setcookie / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
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iFrame src change event detection?
...ething like beforeLoad(to activate a loader)
– Andrea_86
Feb 20 '18 at 16:55
As indicated by @stacigh, it will fire th...
Android Studio Google JAR file causing GC overhead limit exceeded error
...
this solved my issue. but i;ts creating a file called java_pid1512.hprof which is very large. i am guessing your Dfile option is creating it ? is it necessary and can you show how to remove the dump to file
– j2emanue
Aug 6 '17 at 7:15
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Git pull from another repository
...ag. See stackoverflow.com/a/37938036/3799847
– sfinks_29
Oct 26 '17 at 2:24
5
I needed to issue g...
Bash array with spaces in elements
...r me in macOS 10.14.4, which uses "GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin18)". Maybe a bug in the older version of bash?
– Mark Ribau
Apr 17 '19 at 1:47
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