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What are forward declarations in C++?
... wants to ensure you haven't made spelling mistakes or passed the wrong number of arguments to the function. So, it insists that it first sees a declaration of 'add' (or any other types, classes or functions) before it is used.
This really just allows the compiler to do a better job of validating t...
What does the construct x = x || y mean?
I am debugging some JavaScript, and can't explain what this || does?
12 Answers
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Difference between HEAD and master
What is the difference between the HEAD and master in Git?
3 Answers
3
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std::function vs template
...::function family of functor wrappers. Unfortunately, I keep hearing only bad things about these new additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates.
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What are bitwise operators?
...into it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
9 Answers
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LINQ - Left Join, Group By, and Count
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from p in context.ParentTable
join c in context.ChildTable on p.ParentId equals c.ChildParentId into j1
from j2 in j1.DefaultIfEmpty()
group j2 by p.ParentId into grouped
select new { ParentId = grouped.Key, Count = grouped.Count(t=>t.ChildId != nu...
CSS disable text selection
Currently, I have put this in the body tag to disable text selections:
9 Answers
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Get operating system info
I recently started wondering about sites like http://thismachine.info/ that get the user's operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out.
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What is the purpose of setting a key in data.table?
I am using data.table and there are many functions which require me to set a key (e.g. X[Y] ). As such, I wish to understand what a key does in order to properly set keys in my data tables.
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Dark theme in Netbeans 7 or 8
Is there a way to have a dark theme in Netbeans?
6 Answers
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