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Allowing interaction with a UIView under another UIView

... touchesBegan:withEvent: and similar methods (like touchesMoved:withEvent: etc) to send some touches to a different object than where they first go. For example, in A, you could write something like this: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { if ([self shouldForwar...
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MIT vs GPL license [closed]

...-subjective question to ask "what actions may I legally perform with these files I have obtained?" Under GPL, that set of actions is in fact a proper subset of what those actions would have been under MIT. – antinome Aug 15 '12 at 15:29 ...
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Double vs. BigDecimal?

...ouble). 1/3 could be exactly expressed in base 3, base 6, base 9, base 12, etc. and 1/7 could be expressed exactly in base 7, base 14, base 21, etc. BigDecimal advantages are that it is arbitrary precision and that humans are used to the rounding errors you get in base 10. – pr...
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Best way to test for a variable's existence in PHP; isset() is clearly broken

...ng them as though they were. However, since they can be iterated, counted, etc, a missing value is not the same as one whose value is null. The answer in this case, is to use array_key_exists() instead of isset(). Since this is takes the array to check as a function argument, PHP will still raise ...
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Which is faster : if (bool) or if(int)?

...ngs like sign-extend to bring it to certain widths to put it on the stack, etc. (You can't push a byte.) When the optimizer views the AST and does its magic, however, it looks at surrounding context and "knows" when it can replace code with something more efficient without changing semantics. So ...
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How to assign from a function which returns more than one value?

...the function you would have x = desired_return_value_1 # (vector, matrix, etc) y = desired_return_value_2 # (vector, matrix, etc) returnlist = list(x,y...) } # end of function main program x = returnlist[[1]] y = returnlist[[2]] ...
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What is the difference between memoization and dynamic programming?

...? I will take over India first. I will become the Chief Minister of Delhi, etc. etc. Bottom-up - You say I will become the CM of Delhi. Then will take over India, then all other countries in Asia and finally I will take over the world. ...
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PHP multidimensional array search by value

...is did not work for me when the key in the $userdb did not start as 0,1, 2 etc.. and say the key are 1234,4566 etc. The resulting keys after the array_search are always 0,1,2 and so on – Kaushtuv Apr 11 '16 at 6:41 ...
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GUI not working after rewriting to MVC

I'm practicing MVC style programming. I have a Mastermind game in a single file, working fine (maybe apart of the fact that "Check" button is invisible at start). ...
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Update a column value, replacing part of a string

...ensures that you're only replacing parts of strings that begin with http://etc/etc/ or string_to_be_replaced. For example, in the given answer, http://domain1.com/images/this/is/a/test would be affected, but foobar/http://domain1.com/images/ would not. – Kyle Challis ...