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return statement vs exit() in main()
... reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return seems like a better choice than exit() .
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socket.shutdown vs socket.close
I recently saw a bit of code that looked like this (with sock being a socket object of course):
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Differences between fork and exec
...cate of the current process, identical in almost every way. Not everything is copied over (for example, resource limits in some implementations) but the idea is to create as close a copy as possible.
The new process (child) gets a different process ID (PID) and has the PID of the old process (paren...
List of Big-O for PHP functions
...er these two possible implementations of a function that finds if a number is prime using a cached array of primes.
4 Answe...
string.charAt(x) or string[x]?
Is there any reason I should use string.charAt(x) instead of the bracket notation string[x] ?
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What is the difference between substr and substring?
What is the difference between
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How to optimize for-comprehensions and loops in Scala?
So Scala is supposed to be as fast as Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
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Calling remove in foreach loop in Java [duplicate]
In Java, is it legal to call remove on a collection when iterating through the collection using a foreach loop? For instance:
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Is it better to use std::memcpy() or std::copy() in terms to performance?
Is it better to use memcpy as shown below or is it better to use std::copy() in terms to performance? Why?
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What are the differences between type() and isinstance()?
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To summarize the contents of other (already good!) answers, isinstance caters for inheritance (an instance of a derived class is an instance of a base class, too), while checking for equality of type does not (it demands identity of types and rejects instances of subtypes, AKA subclas...