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Shell equality operators (=, ==, -eq)
...sks (it's just causes troubles and confuses beginners), i don't get it why mixing single braces [ ... ] and double equal sign ==. :-/
– DJCrashdummy
Jan 29 at 16:59
...
What are the mechanics of short string optimization in libc++?
...flag should be used with care. It is a different ABI, and if accidentally mixed with a libc++ std::string compiled with a different setting of _LIBCPP_ABI_ALTERNATE_STRING_LAYOUT will create run time errors.
I recommend this flag only be changed by a vendor of libc++.
...
How persistent is localStorage?
....org/en/DOM/Storage
In DOM Storage it is not possible to specify an expiration period for any of your data. All expiration rules are left up to the user. In the case of Mozilla, most of those rules are inherited from the Cookie-related expiration rules. Because of this you can probably expect most o...
Check if at least two out of three booleans are true
... on Intel Core 2 + sun java 1.6.0_15-b03 with HotSpot Server VM (14.1-b02, mixed mode)):
First and second iterations:
a&&b || b&&c || a&&c : 1740 ms
a ? b||c : b&&c : 1690 ms
a&b | b&c | c&a : 835 ms
a + b + c >= 2 : 348 ms
DEAD...
ARC and bridged cast
...
I agree that the description is confusing. Since I just grasped them, I'll try to summarize:
(__bridge_transfer <NSType>) op or alternatively CFBridgingRelease(op) is used to consume a retain-count of a CFTypeRef while transferring it over to...
Pip freeze vs. pip list
...the "requirements format".
Here, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If you do not specify ==1.4.2, the latest version available would be installed.
You can read more in "Virtualenv and pip Basics",
and the official "Requirements File Format" doc...
What is the difference between concurrency and parallelism?
...l or concurrent programming are basically talking about Case 6. This is a mix and match of both parallel and concurrent executions.
Concurrency and Go
If you see why Rob Pike is saying concurrency is better, you have to understand that the reason is. You have a really long task in which there ar...
Is ServiceLocator an anti-pattern?
...te a composition root, whether it be Pure DI, or Containers. Also, you are mixing the use of Service Location, as being a component of your pattern, with the definition of the "Service Locator Pattern." With that definition, Composition Root DI could be considered a "Service Locator Pattern." So th...
Working Soap client example
... //do nothing here most likely, as the response nearly never has mixed content type
//this is just for your reference
}
}
// print SOAP Response
System.out.println("Response SOAP Message:");
soapResponse.writeTo(System.out);
soapConnection.close();
...
Why #egg=foo when pip-installing from git repo
...#egg=Package so pip knows what to expect at that URL. See https://pip.pypa.io/en/stable/reference/pip_install/#vcs-support
more on eggs
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