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Is Meyers' implementation of the Singleton pattern thread safe?
...ics on MSDN) is as follows:
Visual Studio: supported since Visual Studio 2015
GCC: supported since GCC 4.3
Thanks to @Mankarse and @olen_gam for their comments.
In C++03, this code wasn't thread safe. There is an article by Meyers called "C++ and the Perils of Double-Checked Locking" which di...
Is there any difference between a GUID and a UUID?
I see these 2 acronyms thrown around, and I was wondering if there are any differences between a GUID and a UUID?
6 Answers...
Best way to simulate “group by” from bash?
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429
sort ip_addresses | uniq -c
This will print the count first, but other than that it should be...
How to do an INNER JOIN on multiple columns
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edited Mar 2 '10 at 21:39
answered Mar 2 '10 at 21:15
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Is there a common Java utility to break a list into batches?
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257
Check out Lists.partition(java.util.List, int) from Google Guava:
Returns consecutive su...
How to get different colored lines for different plots in a single figure?
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432
Matplotlib does this by default.
E.g.:
import matplotlib.pyplot as plt
import numpy as np
x =...
How to loop through an array containing objects and access their properties
...):
yourArray.forEach(function (arrayItem) {
var x = arrayItem.prop1 + 2;
console.log(x);
});
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How can I recall the argument of the previous bash command?
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answered Jul 30 '10 at 12:17
codaddictcodaddict
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What does value & 0xff do in Java?
... a long. But not on byte. See the Java Language Specification, sections 15.22.1 and 5.6.2.
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