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Check if UIColor is dark or bright?
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I used this code, worked perfectly, but dont know when I set [UIColor blackColor], it returns darknessScore = 149.685. Can you explain why this is happening ?
– DivineDesert
Jun 20 '14 at 20:02
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std::function vs template
Thanks to C++11 we received the std::function family of functor wrappers. Unfortunately, I keep hearing only bad things about these new additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates.
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Finding duplicates in O(n) time and O(1) space
...e. A swap only occurs if there is an i such that A[i] != i, and each swap sets at least one element such that A[i] == i, where that wasn't true before. This means that the total number of swaps (and thus the total number of executions of the while loop body) is at most N-1.
The second loop prints...
Upload artifacts to Nexus, without Maven
...uilder builder = new RequestBuilder("POST");
Request request = builder.setUrl("https://oss.sonatype.org/service/local/staging/profiles/" + profile + "/finish")
.addHeader("Content-Type", "application/json")
.addHeader("Authorization", "Ba...
Android and setting width and height programmatically in dp units
I'm doing:
5 Answers
5
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switch / pattern matching idea
...rsion compiles to a compound conditional; the delegate version is simply a set of predicates and func/actions - once it has a match it stops.
– Marc Gravell♦
Oct 1 '08 at 8:27
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How do I make a simple makefile for gcc on Linux?
... editor after snippets, if snippets enabled
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Difference between __getattr__ vs __getattribute__
...o call an attribute which doesn't exist, python creates that attribute and set it to integer value 0.
class Count:
def __init__(self,mymin,mymax):
self.mymin=mymin
self.mymax=mymax
def __getattr__(self, item):
self.__dict__[item]=0
return 0
obj1 = Coun...
How to execute file I'm editing in Vi(m)
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There is the make command. It runs the command set in the makeprg option. Use % as a placeholder for the current file name. For example, if you were editing a python script:
:set makeprg=python\ %
Yes, you need to escape the space. After this you can simply run:
:make...
What's the difference between %s and %d in Python string formatting?
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In Google Chrome: Settings >> Search >> Manage search engines... notice how %s is used with search engine configurations. Chrome uses %s to replace keywords entered in the address bar. Python uses %s in a similar way. In print('des...