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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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What is the >>>= operator in C?
Given by a colleague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???"
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Programmer Puzzle: Encoding a chess board state throughout a game
Not strictly a question, more of a puzzle...
31 Answers
31
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What's the difference between deadlock and livelock?
Can somebody please explain with examples (of code) what is the difference between deadlock and livelock ?
7 Answers
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How to identify numpy types in python?
How can one reliably determine if an object has a numpy type?
6 Answers
6
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How was the first compiler written?
I heard about the chicken and the egg and bootstrapping. I have a few questions.
6 Answers
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PHP append one array to another (not array_push or +)
How to append one array to another without comparing their keys?
12 Answers
12
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What is an application binary interface (ABI)?
I never clearly understood what an ABI is. Please don't point me to a Wikipedia article. If I could understand it, I wouldn't be here posting such a lengthy post.
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Does Swift have access modifiers?
In Objective-C instance data can be public , protected or private . For example:
17 Answers
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INNER JOIN vs LEFT JOIN performance in SQL Server
I've created SQL command that uses INNER JOIN on 9 tables, anyway this command takes a very long time (more than five minutes). So my folk suggested me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got si...