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What is x after “x = x++”?
What happens (behind the curtains) when this is executed?
17 Answers
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Lock-free multi-threading is for real threading experts
...h an answer that Jon Skeet gave to a question and in it he mentioned this:
6 Answers
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Forward declaring an enum in C++
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The reason the enum can't be forward declared is that without knowing the values, the compiler can't know the storage required for the enum variable. C++ Compiler's are allowed to specify the actual storage space based on the size necessary to contain all the values spe...
A simple explanation of Naive Bayes Classification
...ring if someone could explain it with a simple step by step process in English. I understand it takes comparisons by times occurred as a probability, but I have no idea how the training data is related to the actual dataset.
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What optimizations can GHC be expected to perform reliably?
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This GHC Trac page also explains the passes fairly well. This page explains the optimization ordering, though, like the majority of the Trac Wiki, it is out of date.
For specifics, the best thing to do is probably to look at h...
What is a segmentation fault?
What is a segmentation fault? Is it different in C and C++? How are segmentation faults and dangling pointers related?
14 A...
Is Java a Compiled or an Interpreted programming language ?
...ementations typically use a two-step compilation process. Java source code is compiled down to bytecode by the Java compiler. The bytecode is executed by a Java Virtual Machine (JVM). Modern JVMs use a technique called Just-in-Time (JIT) compilation to compile the bytecode to native instructions und...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
I am trying to check if a dictionary is empty but it doesn't behave properly. It just skips it and displays ONLINE without anything except of display the message. Any ideas why ?
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When is null or undefined used in JavaScript? [duplicate]
...ving no value) when the call does not return a node object.
The property is defined, but the object it refers to does not exist.
This is one of the few times you may not want to test for equality-
if(x!==undefined) will be true for a null value
but if(x!= undefined) will be true (only) for val...
Is there a “not equal” operator in Python?
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Use !=. See comparison operators. For comparing object identities, you can use the keyword is and its negation is not.
e.g.
1 == 1 # -> True
1 != 1 # -> False
[] is [] #-> False (distinct objects)
a = b = []; a is b # -> True (...