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In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
...All of this is very well explained in the ARC transition guide.
In your NSError example, the declaration means __strong, implicitly:
NSError * e = nil;
Will be transformed to:
NSError * __strong error = nil;
When you call your save method:
- ( BOOL )save: ( NSError * __autoreleasing * );
T...
How to find the JVM version from a program?
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That JMX call returns the equivalent of "java.vm.version", not "java.version". These are usually (but not necessarily) the same.
– Alex Miller
Jun 21 '13 at 15:54
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How to check if there exists a process with a given pid in Python?
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Sending signal 0 to a pid will raise an OSError exception if the pid is not running, and do nothing otherwise.
import os
def check_pid(pid):
""" Check For the existence of a unix pid. """
try:
os.kill(pid, 0)
except OSError:
retu...
Intellij idea cannot resolve anything in maven
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I was also getting this error because the project imported main and test folders as modules. Click on Project --> Press F4 --> In Module settings, remove main and test folders and the make the project again. Problem will be resolved.
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Python Unicode Encode Error
... while the XML file shows a ' , when I try to print it I get the following error:
9 Answers
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Using property() on classmethods
.... I tried to use the property() function with these, but it results in an error. I was able to reproduce the error with the following in the interpreter:
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How do you view ALL text from an ntext or nvarchar(max) in SSMS?
...as a comment to the (currently) accepted answer didn't work for me (got an error when trying to view the full XML result complaining about "The '[' character, hexadecimal value 0x5B, cannot be included in a name").
share
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What is the equivalent of MATLAB's repmat in NumPy
I would like to execute the equivalent of the following MATLAB code using NumPy: repmat([1; 1], [1 1 1]) . How would I accomplish this?
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What is getattr() exactly and how do I use it?
... understand about getattr() is that getattr(li, "pop") is the same as calling li.pop .
14 Answers
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Generating a drop down list of timezones with PHP
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I've been reported a bug for the same error as Xeoncross and was wondering if anyone knows how this is possible? The manual seems to indicate that these constants are available since PHP5.2 but is this incorrect?
– brendo
Ap...