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Get the current first responder without using a private API
I submitted my app a little over a week ago and got the dreaded rejection email today. It tells me that my app cannot be accepted because I'm using a non-public API; specifically, it says,
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What is an undefined reference/unresolved external symbol error and how do I fix it?
...iling a C++ program takes place in several steps, as specified by 2.2 (credits to Keith Thompson for the reference):
The precedence among the syntax rules of translation is specified by the following phases [see footnote].
Physical source file characters are mapped, in an implementation-defined ma...
Difference between JSON.stringify and JSON.parse
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edited Jul 14 '19 at 4:16
user1063287
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What is a higher kinded type in Scala?
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Let me make up for starting some of this confusion by pitching in with some disambiguation. I like to use the analogy to the value level to explain this, as people tend to be more familiar with it.
A type constructor is a type that you can apply to type arguments to "construct"...
ImportError: numpy.core.multiarray failed to import
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I was getting the same error and was able to solve it by updating my numpy installation to 1.8.0:
pip install -U numpy
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What are the best JVM settings for Eclipse? [closed]
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It is that time of year again: "eclipse.ini take 3" the settings strike back!
Eclipse Helios 3.6 and 3.6.x settings
alt text http://www.eclipse.org/home/promotions/friends-helios/helios.png
After settings for Eclipse Gan...
Creating a new dictionary in Python
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Call dict with no parameters
new_dict = dict()
or simply write
new_dict = {}
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How do you round a floating point number in Perl?
...t int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implements
ceil(), floor(), and a number of other ma...
What is the purpose of std::make_pair vs the constructor of std::pair?
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The difference is that with std::pair you need to specify the types of both elements, whereas std::make_pair will create a pair with the type of the elements that are passed to it, without you needing to tell it. That's what I could gather from vari...
Why does Javascript's regex.exec() not always return the same value? [duplicate]
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When the regex is global, if you call a method on the same regex object, it will start from the index past the end of the last match.
When no more matches are found, the index is reset to 0 automatically.
To reset it manually, set the lastIndex property.
reg.lastIndex = 0;
This can be a v...