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Asking the user for input until they give a valid response
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The simplest way to accomplish this is to put the input method in a while loop. Use continue when you get bad input, and break out of the loop when you're satisfied.
When Your Input Might Raise an Exception
Use try and except to detect when the user enters data that can't be par...
What is memory fragmentation?
I've heard the term "memory fragmentation" used a few times in the context of C++ dynamic memory allocation. I've found some questions about how to deal with memory fragmentation, but can't find a direct question that deals with it itself. So:
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GCM with PHP (Google Cloud Messaging)
How can I integrate the new Google Cloud Messaging in a PHP backend?
13 Answers
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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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How to make Visual Studio copy a DLL file to the output directory?
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git merge: apply changes to code that moved to a different file
I am attempting a pretty beefy git merge maneuver right now. One problem that I am coming across is that I made some changes to some code in my branch, but my colleague moved that code to a new file in his branch. So when I did git merge my_branch his_branch , git did not notice that the code in ...
What's “P=NP?”, and why is it such a famous question? [closed]
...r P=NP is perhaps the most famous in all of Computer Science. What does it mean? And why is it so interesting?
6 Answers
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What are the differences between Perl, Python, AWK and sed? [closed]
...tainly not PCRE - Perl-Compatible Regular Expressions)
The awk program (name from the initials of its authors - Aho, Weinberger, and Kernighan) is a tool initially for formatting reports. It can be used as a souped-up sed; in its more recent versions, it is computationally complete. It uses an inte...
What exceptions should be thrown for invalid or unexpected parameters in .NET?
What types of exceptions should be thrown for invalid or unexpected parameters in .NET? When would I choose one instead of another?
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Why is “final” not allowed in Java 8 interface methods?
One of the most useful features of Java 8 are the new default methods on interfaces. There are essentially two reasons (there may be others) why they have been introduced:
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