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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...
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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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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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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Eclipse error: “The import XXX cannot be resolved”
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How to get the filename without the extension in Java?
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answered Nov 27 '09 at 10:13
Ulf LindbackUlf Lindback
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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 do I use NSTimer?
... can be done something like this:
[NSTimer scheduledTimerWithTimeInterval:2.0
target:self
selector:@selector(targetMethod:)
userInfo:nil
repeats:NO];
This will create a timer that is fired after 2.0 seconds and calls targetMethod: on self with one argument, which is a pointer to t...
break out of if and foreach
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624
if is not a loop structure, so you cannot "break out of it".
You can, however, break out of the...