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“unmappable character for encoding” warning in Java
...AVA_TOOL_OPTIONS. If you set this variable to -Dfile.encoding=UTF8,
everytime a JVM is started, it will pick up this information.
Source: http://whatiscomingtomyhead.wordpress.com/2012/01/02/get-rid-of-unmappable-character-for-encoding-cp1252-once-and-for-all/
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Error pushing to GitHub - insufficient permission for adding an object to repository database
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This works only for some time in my case. I have to redo it after some pushes.
– BuZZ-dEE
Nov 27 '13 at 15:45
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Git branching: master vs. origin/master vs. remotes/origin/master
... (stolen from Torek):
origin/master is "where master was over there last time I checked"
master is "where master is over here based on what I have been doing"
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MySQL offset infinite rows
...lly want is to grab them in increments of 100 million and loop 184 billion times.
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Clear the cache in JavaScript
...n. It never clears the original page from the cache as it simply appends a time stamp to the new request, and if there are other calls made asynchronously by this page, those requests will NOT have their caching behaviors disabled. Eg. If you refresh a page with reload(true) that loads some html, an...
Threads vs Processes in Linux
...ces are shared. A task can also unshare() resources at any later point in time.
– ephemient
Jun 18 '14 at 14:28
4
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Script parameters in Bash
...e/kristoffer/test.txt
As the others are suggesting, if this is your first time writing bash scripts you should really read up on some basics. This was just a quick tutorial on how getopts works.
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What is the copy-and-swap idiom?
...nd act as noise in the code; self-assignment rarely occurs, so most of the time this check is a waste. It would be better if the operator could work properly without it.
The second is that it only provides a basic exception guarantee. If new int[mSize] fails, *this will have been modified. (Namely, ...
Usage of sys.stdout.flush() method
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Consider the following simple Python script:
import time
import sys
for i in range(5):
print(i),
#sys.stdout.flush()
time.sleep(1)
This is designed to print one number every second for five seconds, but if you run it as it is now (depending on your default syste...
Performance differences between debug and release builds
...olling. Loops with small bodies are improved by repeating the code up to 4 times in the body and looping less. Reduces the branch cost and improves the processor's super-scalar execution options.
Dead code elimination. A statement like if (false) { /.../ } gets completely eliminated. This can occ...