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Is unsigned integer subtraction defined behavior?
I have come across code from someone who appears to believe there is a problem subtracting an unsigned integer from another integer of the same type when the result would be negative. So that code like this would be incorrect even if it happens to work on most architectures.
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What are the main purposes of using std::forward and which problems it solves?
In perfect forwarding, std::forward is used to convert the named rvalue references t1 and t2 to unnamed rvalue references. What is the purpose of doing that? How would that affect the called function inner if we leave t1 & t2 as lvalues?
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Do sealed classes really offer performance Benefits?
...l sometimes use non-virtual calls to methods in sealed classes since there is no way they can be extended further.
There are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but if you google for sealed classes and virtual m...
super() raises “TypeError: must be type, not classobj” for new-style class
The following use of super() raises a TypeError: why?
7 Answers
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How can I use map and receive an index as well in Scala?
Is there any List/Sequence built-in that behaves like map and provides the element's index as well?
8 Answers
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What's the simplest way to test whether a number is a power of 2 in C++?
I need a function like this:
17 Answers
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Regular expression to check if password is “8 characters including 1 uppercase letter, 1 special cha
...t I am pretty sure that maintaining it and debugging it would be easier. This would also allow you to provide more directed error messages to your users (other than just Invalid Password) which should improve user experience.
From what I am seeing you are pretty fluent in regex, so I would presume ...
What database does Google use?
Is it Oracle or MySQL or something they have built themselves?
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Android REST client, Sample?
Even if this thread has accepted answer, feel free to propose other ideas, you do use or like
7 Answers
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Why malloc+memset is slower than calloc?
It's known that calloc is different than malloc in that it initializes the memory allocated. With calloc , the memory is set to zero. With malloc , the memory is not cleared.
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