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AutoLayout with hidden UIViews?

I feel like it's a fairly common paradigm to show/hide UIViews , most often UILabels , depending on business logic. My question is, what is the best way using AutoLayout to respond to hidden views as if their frame was 0x0. Here is an example of a dynamic list of 1-3 features. ...
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Should each and every table have a primary key?

...eating a database table and I don't have a logical primary key assigned to it. So, I'm thinking about leaving it without a primary key, but I'm feeling a bit guilty about it. Should I? ...
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Why does the order in which libraries are linked sometimes cause errors in GCC?

...the history on this answer to get the more elaborate text, but I now think it's easier for the reader to see real command lines). Common files shared by all below commands $ cat a.cpp extern int a; int main() { return a; } $ cat b.cpp extern int b; int a = b; $ cat d.cpp int b; Linking to ...
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Generate random numbers uniformly over an entire range

I need to generate random numbers within a specified interval, [max;min]. 17 Answers 1...
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Conveniently Declaring Compile-Time Strings in C++

...rings during compile-time in C++ has several useful applications. Although it is possible to create compile-time strings in C++, the process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g. ...
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https URL with token parameter : how secure is it?

On our site, we provide to users a simulation based on their private information (given through a form). We would like to allow them to get back on their simulation results later, but without forcing them to create a login/password account. ...
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Difference between Pig and Hive? Why have both? [closed]

My background - 4 weeks old in the Hadoop world. Dabbled a bit in Hive, Pig and Hadoop using Cloudera's Hadoop VM. Have read Google's paper on Map-Reduce and GFS ( PDF link ). ...
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Emacs mode for Stack Overflow's markdown

...er, an extension for Org-mode to handle Stack Overflow formatting? Ideally it should include all formatting options supported by the markdown syntax used in the Stack Overflow question/comment buffers. ...
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How do I determine whether an array contains a particular value in Java?

I have a String[] with values like so: 29 Answers 29 ...
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Embedding Python in an iPhone app

So it's a new millennium; Apple has waved their hand; it's now legal to include a Python interpreter in an iPhone (App Store) app. ...